pg_ctl: Add tests for behavior with nonexistent data directory

This behavior was made more precise in commit
11d205e2.

src/bin/pg_ctl/t/001_start_stop.pl

 use strict;
 use warnings;
 use TestLib;
-use Test::More tests => 10;
+use Test::More tests => 11;
 
 my $tempdir = TestLib::tempdir;
 my $tempdir_short = TestLib::tempdir_short;
@@ -10,6 +10,9 @@ program_help_ok('pg_ctl');
 program_version_ok('pg_ctl');
 program_options_handling_ok('pg_ctl');
 
+command_exit_is([ 'pg_ctl', 'start', '-D', "$tempdir/nonexistent" ],
+				1, 'pg_ctl start with nonexistent directory');
+
 command_ok([ 'pg_ctl', 'initdb', '-D', "$tempdir/data" ], 'pg_ctl initdb');
 open CONF, ">>$tempdir/data/postgresql.conf";
 print CONF "listen_addresses = ''\n";

src/bin/pg_ctl/t/002_status.pl

 use strict;
 use warnings;
 use TestLib;
-use Test::More tests => 2;
+use Test::More tests => 3;
 
 my $tempdir = TestLib::tempdir;
 my $tempdir_short = TestLib::tempdir_short;
 
+command_exit_is([ 'pg_ctl', 'status', '-D', "$tempdir/nonexistent" ],
+	4, 'pg_ctl status with nonexistent directory');
+
 system_or_bail "initdb -D '$tempdir'/data -A trust >/dev/null";
 open CONF, ">>$tempdir/data/postgresql.conf";
 print CONF "listen_addresses = ''\n";