Remove tabs from SGML files to help tag alingment and improve

detection of tabs are added in the future.

doc/src/sgml/docguide.sgml

-<!-- $PostgreSQL: pgsql/doc/src/sgml/docguide.sgml,v 1.70 2007/02/01 00:28:16 momjian Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/docguide.sgml,v 1.71 2007/02/16 03:50:28 momjian Exp $ -->
 
 <appendix id="docguide">
  <title>Documentation</title>

doc/src/sgml/ecpg.sgml

-<!-- $PostgreSQL: pgsql/doc/src/sgml/ecpg.sgml,v 1.80 2007/02/01 19:10:24 momjian Exp $ -->
+`<!-- $PostgreSQL: pgsql/doc/src/sgml/ecpg.sgml,v 1.81 2007/02/16 03:50:29 momjian Exp $ -->
 
 <chapter id="ecpg">
  <title><application>ECPG</application> - Embedded <acronym>SQL</acronym> in C</title>

doc/src/sgml/func.sgml

-<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.359 2007/02/16 03:39:44 momjian Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.360 2007/02/16 03:50:29 momjian Exp $ -->
 
  <chapter id="functions">
   <title>Functions and Operators</title>

doc/src/sgml/geqo.sgml

-<!-- $PostgreSQL: pgsql/doc/src/sgml/geqo.sgml,v 1.38 2006/09/16 00:30:14 momjian Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/geqo.sgml,v 1.39 2007/02/16 03:50:29 momjian Exp $ -->
 
  <chapter id="geqo">
   <chapterinfo>

doc/src/sgml/gin.sgml

-<!-- $PostgreSQL: pgsql/doc/src/sgml/gin.sgml,v 2.10 2007/02/01 19:10:24 momjian Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/gin.sgml,v 2.11 2007/02/16 03:50:29 momjian Exp $ -->
 
 <chapter id="GIN">
 <title>GIN Indexes</title>

doc/src/sgml/libpq.sgml

-<!-- $PostgreSQL: pgsql/doc/src/sgml/libpq.sgml,v 1.229 2007/02/16 02:59:40 momjian Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/libpq.sgml,v 1.230 2007/02/16 03:50:29 momjian Exp $ -->
 
  <chapter id="libpq">
   <title><application>libpq</application> - C Library</title>

doc/src/sgml/mvcc.sgml

-<!-- $PostgreSQL: pgsql/doc/src/sgml/mvcc.sgml,v 2.67 2007/02/08 15:32:11 momjian Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/mvcc.sgml,v 2.68 2007/02/16 03:50:29 momjian Exp $ -->
 
  <chapter id="mvcc">
   <title>Concurrency Control</title>

doc/src/sgml/plperl.sgml

-<!-- $PostgreSQL: pgsql/doc/src/sgml/plperl.sgml,v 2.63 2007/02/01 19:10:24 momjian Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/plperl.sgml,v 2.64 2007/02/16 03:50:29 momjian Exp $ -->
 
  <chapter id="plperl">
   <title>PL/Perl - Perl Procedural Language</title>

doc/src/sgml/sql.sgml

-<!-- $PostgreSQL: pgsql/doc/src/sgml/sql.sgml,v 1.45 2007/02/01 19:10:24 momjian Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/sql.sgml,v 1.46 2007/02/16 03:50:29 momjian Exp $ -->
 
  <chapter id="sql-intro">
   <title>SQL</title>