event trigger test exception message

I don't wish to seem humorless, but I think this should probably be changed:

root/HEAD/pgsql/src/test/regress/sql/event_trigger.sql:248:  RAISE 
EXCEPTION 'I''m sorry Sir, No Rewrite Allowed.';

Quite apart from any other reason, the "Sir" does seem a bit sexist - we 
have no idea of the gender of the reader. Probably just 'sorry, no 
rewrite allowed' would suffice.

(Noticed while looking at buildfarm failures.)

cheers

andrew