Fix regression tests to match error message change

adunstan · adunstan · commit 2627d5bd0dfe · 2010-05-18T03:35:34.000Z
diff --git a/src/pl/plperl/expected/plperl_init.out b/src/pl/plperl/expected/plperl_init.out
@@ -10,5 +10,5 @@ SHOW plperl.on_plperl_init;
 
 DO $$ warn 42 $$ language plperl;
 ERROR:  'system' trapped by operation mask at line 2.
-CONTEXT:  While executing plperl.on_plperl_init.
+CONTEXT:  while executing plperl.on_plperl_init
 PL/Perl anonymous code block
