Upstream report:
http://www.postgresql.org/message-id/flat/55739876.5010403@gmx.net

diff --git a/src/pl/plperl/expected/plperl_elog.out b/src/pl/plperl/expected/plperl_elog.out
index c447fa2..0932fde 100644
--- a/src/pl/plperl/expected/plperl_elog.out
+++ b/src/pl/plperl/expected/plperl_elog.out
@@ -36,8 +36,8 @@ create or replace function uses_global() returns text language plperl as $$
   return 'uses_global worked';
 
 $$;
-ERROR:  Global symbol "$global" requires explicit package name at line 3.
-Global symbol "$other_global" requires explicit package name at line 4.
+ERROR:  Global symbol "$global" requires explicit package name (did you forget to declare "my $global"?) at line 3.
+Global symbol "$other_global" requires explicit package name (did you forget to declare "my $other_global"?) at line 4.
 CONTEXT:  compilation of PL/Perl function "uses_global"
 select uses_global();
 ERROR:  function uses_global() does not exist