Fix typos in some error messages thrown by extension scripts when fed to psql.

Some of the many error messages introduced in 458857cc missed 'FROM
unpackaged'. Also e016b724 and 45ffeb7e forgot to quote extension
version numbers.

Backpatch to 9.1, just like 458857cc which introduced the messages. Do
so because the error messages thrown when the wrong command is copy &
pasted aren't easy to understand.

contrib/btree_gin/btree_gin--unpackaged--1.0.sql

 /* contrib/btree_gin/btree_gin--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION btree_gin" to load this file. \quit
+\echo Use "CREATE EXTENSION btree_gin FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION btree_gin ADD function gin_btree_consistent(internal,smallint,anyelement,integer,internal,internal);
 ALTER EXTENSION btree_gin ADD function gin_extract_value_int2(smallint,internal);

contrib/btree_gist/btree_gist--unpackaged--1.0.sql

 /* contrib/btree_gist/btree_gist--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION btree_gist" to load this file. \quit
+\echo Use "CREATE EXTENSION btree_gist FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION btree_gist ADD type gbtreekey4;
 ALTER EXTENSION btree_gist ADD function gbtreekey4_in(cstring);

contrib/chkpass/chkpass--unpackaged--1.0.sql

 /* contrib/chkpass/chkpass--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION chkpass" to load this file. \quit
+\echo Use "CREATE EXTENSION chkpass FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION chkpass ADD type chkpass;
 ALTER EXTENSION chkpass ADD function chkpass_in(cstring);

contrib/citext/citext--unpackaged--1.0.sql

 /* contrib/citext/citext--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION citext" to load this file. \quit
+\echo Use "CREATE EXTENSION citext FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION citext ADD type citext;
 ALTER EXTENSION citext ADD function citextin(cstring);

contrib/cube/cube--unpackaged--1.0.sql

 /* contrib/cube/cube--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION cube" to load this file. \quit
+\echo Use "CREATE EXTENSION cube FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION cube ADD type cube;
 ALTER EXTENSION cube ADD function cube_in(cstring);

contrib/dblink/dblink--unpackaged--1.0.sql

 /* contrib/dblink/dblink--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION dblink" to load this file. \quit
+\echo Use "CREATE EXTENSION dblink FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION dblink ADD function dblink_connect(text);
 ALTER EXTENSION dblink ADD function dblink_connect(text,text);

contrib/dict_int/dict_int--unpackaged--1.0.sql

 /* contrib/dict_int/dict_int--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION dict_int" to load this file. \quit
+\echo Use "CREATE EXTENSION dict_int FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION dict_int ADD function dintdict_init(internal);
 ALTER EXTENSION dict_int ADD function dintdict_lexize(internal,internal,internal,internal);

contrib/dict_xsyn/dict_xsyn--unpackaged--1.0.sql

 /* contrib/dict_xsyn/dict_xsyn--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION dict_xsyn" to load this file. \quit
+\echo Use "CREATE EXTENSION dict_xsyn FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION dict_xsyn ADD function dxsyn_init(internal);
 ALTER EXTENSION dict_xsyn ADD function dxsyn_lexize(internal,internal,internal,internal);

contrib/earthdistance/earthdistance--unpackaged--1.0.sql

 /* contrib/earthdistance/earthdistance--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION earthdistance" to load this file. \quit
+\echo Use "CREATE EXTENSION earthdistance FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION earthdistance ADD function earth();
 ALTER EXTENSION earthdistance ADD type earth;

contrib/fuzzystrmatch/fuzzystrmatch--unpackaged--1.0.sql

 /* contrib/fuzzystrmatch/fuzzystrmatch--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION fuzzystrmatch" to load this file. \quit
+\echo Use "CREATE EXTENSION fuzzystrmatch FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION fuzzystrmatch ADD function levenshtein(text,text);
 ALTER EXTENSION fuzzystrmatch ADD function levenshtein(text,text,integer,integer,integer);

contrib/hstore/hstore--unpackaged--1.0.sql

 /* contrib/hstore/hstore--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION hstore" to load this file. \quit
+\echo Use "CREATE EXTENSION hstore FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION hstore ADD type hstore;
 ALTER EXTENSION hstore ADD function hstore_in(cstring);

contrib/intagg/intagg--unpackaged--1.0.sql

 /* contrib/intagg/intagg--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION intagg" to load this file. \quit
+\echo Use "CREATE EXTENSION intagg FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION intagg ADD function int_agg_state(internal,integer);
 ALTER EXTENSION intagg ADD function int_agg_final_array(internal);

contrib/intarray/intarray--unpackaged--1.0.sql

 /* contrib/intarray/intarray--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION intarray" to load this file. \quit
+\echo Use "CREATE EXTENSION intarray FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION intarray ADD type query_int;
 ALTER EXTENSION intarray ADD function bqarr_in(cstring);

contrib/isn/isn--unpackaged--1.0.sql

 /* contrib/isn/isn--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION isn" to load this file. \quit
+\echo Use "CREATE EXTENSION isn FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION isn ADD type ean13;
 ALTER EXTENSION isn ADD function ean13_in(cstring);

contrib/lo/lo--unpackaged--1.0.sql

 /* contrib/lo/lo--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION lo" to load this file. \quit
+\echo Use "CREATE EXTENSION lo FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION lo ADD domain lo;
 ALTER EXTENSION lo ADD function lo_oid(lo);

contrib/ltree/ltree--unpackaged--1.0.sql

 /* contrib/ltree/ltree--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION ltree" to load this file. \quit
+\echo Use "CREATE EXTENSION ltree FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION ltree ADD type ltree;
 ALTER EXTENSION ltree ADD function ltree_in(cstring);

contrib/pageinspect/pageinspect--1.0--1.1.sql

 /* contrib/pageinspect/pageinspect--1.0--1.1.sql */
 
 -- complain if script is sourced in psql, rather than via ALTER EXTENSION
-\echo Use "ALTER EXTENSION pageinspect UPDATE TO 1.1" to load this file. \quit
+\echo Use "ALTER EXTENSION pageinspect UPDATE TO '1.1'" to load this file. \quit
 
 DROP FUNCTION page_header(bytea);
 CREATE FUNCTION page_header(IN page bytea,

contrib/pageinspect/pageinspect--1.1--1.2.sql

 /* contrib/pageinspect/pageinspect--1.1--1.2.sql */
 
 -- complain if script is sourced in psql, rather than via ALTER EXTENSION
-\echo Use "ALTER EXTENSION pageinspect UPDATE TO 1.2" to load this file. \quit
+\echo Use "ALTER EXTENSION pageinspect UPDATE TO '1.2'" to load this file. \quit
 
 DROP FUNCTION page_header(bytea);
 CREATE FUNCTION page_header(IN page bytea,

contrib/pageinspect/pageinspect--unpackaged--1.0.sql

 /* contrib/pageinspect/pageinspect--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION pageinspect" to load this file. \quit
+\echo Use "CREATE EXTENSION pageinspect FROM unpackaged" to load this file. \quit
 
 DROP FUNCTION heap_page_items(bytea);
 CREATE FUNCTION heap_page_items(IN page bytea,

contrib/pg_buffercache/pg_buffercache--unpackaged--1.0.sql

 /* contrib/pg_buffercache/pg_buffercache--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION pg_buffercache" to load this file. \quit
+\echo Use "CREATE EXTENSION pg_buffercache FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION pg_buffercache ADD function pg_buffercache_pages();
 ALTER EXTENSION pg_buffercache ADD view pg_buffercache;

contrib/pg_freespacemap/pg_freespacemap--unpackaged--1.0.sql

 /* contrib/pg_freespacemap/pg_freespacemap--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION pg_freespacemap" to load this file. \quit
+\echo Use "CREATE EXTENSION pg_freespacemap FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION pg_freespacemap ADD function pg_freespace(regclass,bigint);
 ALTER EXTENSION pg_freespacemap ADD function pg_freespace(regclass);

contrib/pg_stat_statements/pg_stat_statements--unpackaged--1.0.sql

 /* contrib/pg_stat_statements/pg_stat_statements--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION pg_stat_statements" to load this file. \quit
+\echo Use "CREATE EXTENSION pg_stat_statements FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION pg_stat_statements ADD function pg_stat_statements_reset();
 ALTER EXTENSION pg_stat_statements ADD function pg_stat_statements();

contrib/pg_trgm/pg_trgm--unpackaged--1.0.sql

 /* contrib/pg_trgm/pg_trgm--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION pg_trgm" to load this file. \quit
+\echo Use "CREATE EXTENSION pg_trgm FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION pg_trgm ADD function set_limit(real);
 ALTER EXTENSION pg_trgm ADD function show_limit();

contrib/pgcrypto/pgcrypto--unpackaged--1.0.sql

 /* contrib/pgcrypto/pgcrypto--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION pgcrypto" to load this file. \quit
+\echo Use "CREATE EXTENSION pgcrypto FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION pgcrypto ADD function digest(text,text);
 ALTER EXTENSION pgcrypto ADD function digest(bytea,text);

contrib/pgrowlocks/pgrowlocks--unpackaged--1.0.sql

 /* contrib/pgrowlocks/pgrowlocks--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION pgrowlocks" to load this file. \quit
+\echo Use "CREATE EXTENSION pgrowlocks FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION pgrowlocks ADD function pgrowlocks(text);

contrib/pgstattuple/pgstattuple--unpackaged--1.0.sql

 /* contrib/pgstattuple/pgstattuple--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION pgstattuple" to load this file. \quit
+\echo Use "CREATE EXTENSION pgstattuple FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION pgstattuple ADD function pgstattuple(text);
 ALTER EXTENSION pgstattuple ADD function pgstattuple(oid);

contrib/seg/seg--unpackaged--1.0.sql

 /* contrib/seg/seg--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION seg" to load this file. \quit
+\echo Use "CREATE EXTENSION seg FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION seg ADD type seg;
 ALTER EXTENSION seg ADD function seg_in(cstring);

contrib/spi/autoinc--unpackaged--1.0.sql

 /* contrib/spi/autoinc--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION autoinc" to load this file. \quit
+\echo Use "CREATE EXTENSION autoinc FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION autoinc ADD function autoinc();

contrib/spi/insert_username--unpackaged--1.0.sql

 /* contrib/spi/insert_username--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION insert_username" to load this file. \quit
+\echo Use "CREATE EXTENSION insert_username FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION insert_username ADD function insert_username();

contrib/spi/moddatetime--unpackaged--1.0.sql

 /* contrib/spi/moddatetime--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION moddatetime" to load this file. \quit
+\echo Use "CREATE EXTENSION moddatetime FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION moddatetime ADD function moddatetime();

contrib/spi/refint--unpackaged--1.0.sql

 /* contrib/spi/refint--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION refint" to load this file. \quit
+\echo Use "CREATE EXTENSION refint FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION refint ADD function check_primary_key();
 ALTER EXTENSION refint ADD function check_foreign_key();

contrib/spi/timetravel--unpackaged--1.0.sql

 /* contrib/spi/timetravel--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION timetravel" to load this file. \quit
+\echo Use "CREATE EXTENSION timetravel FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION timetravel ADD function timetravel();
 ALTER EXTENSION timetravel ADD function set_timetravel(name,integer);

contrib/sslinfo/sslinfo--unpackaged--1.0.sql

 /* contrib/sslinfo/sslinfo--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION sslinfo" to load this file. \quit
+\echo Use "CREATE EXTENSION sslinfo FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION sslinfo ADD function ssl_client_serial();
 ALTER EXTENSION sslinfo ADD function ssl_is_used();

contrib/tablefunc/tablefunc--unpackaged--1.0.sql

 /* contrib/tablefunc/tablefunc--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION tablefunc" to load this file. \quit
+\echo Use "CREATE EXTENSION tablefunc FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION tablefunc ADD function normal_rand(integer,double precision,double precision);
 ALTER EXTENSION tablefunc ADD function crosstab(text);

contrib/test_parser/test_parser--unpackaged--1.0.sql

 /* contrib/test_parser/test_parser--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION test_parser" to load this file. \quit
+\echo Use "CREATE EXTENSION test_parser FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION test_parser ADD function testprs_start(internal,integer);
 ALTER EXTENSION test_parser ADD function testprs_getlexeme(internal,internal,internal);

contrib/tsearch2/tsearch2--unpackaged--1.0.sql

 /* contrib/tsearch2/tsearch2--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION tsearch2" to load this file. \quit
+\echo Use "CREATE EXTENSION tsearch2 FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION tsearch2 ADD type @extschema@.tsvector;
 ALTER EXTENSION tsearch2 ADD type @extschema@.tsquery;

contrib/unaccent/unaccent--unpackaged--1.0.sql

 /* contrib/unaccent/unaccent--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION unaccent" to load this file. \quit
+\echo Use "CREATE EXTENSION unaccent FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION unaccent ADD function unaccent(regdictionary,text);
 ALTER EXTENSION unaccent ADD function unaccent(text);

contrib/uuid-ossp/uuid-ossp--unpackaged--1.0.sql

 /* contrib/uuid-ossp/uuid-ossp--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use '''CREATE EXTENSION "uuid-ossp"''' to load this file. \quit
+\echo Use '''CREATE EXTENSION "uuid-ossp" FROM unpackaged''' to load this file. \quit
 
 ALTER EXTENSION "uuid-ossp" ADD function uuid_nil();
 ALTER EXTENSION "uuid-ossp" ADD function uuid_ns_dns();

contrib/xml2/xml2--unpackaged--1.0.sql

 /* contrib/xml2/xml2--unpackaged--1.0.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION xml2" to load this file. \quit
+\echo Use "CREATE EXTENSION xml2 FROM unpackaged" to load this file. \quit
 
 ALTER EXTENSION xml2 ADD function xslt_process(text,text);
 ALTER EXTENSION xml2 ADD function xslt_process(text,text,text);