Log Message:
-----------
plpgsql EXIT construct forgot to downcase or quote-strip its identifier
argument, leading to label matching failures at run-time. Per report from
Patrick Fiche. Also, fix it so that an unrecognized label argument draws
a more useful error message than 'syntax error'.
Modified Files:
--------------
pgsql/src/pl/plpgsql/src:
gram.y (r1.62 -> r1.63)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/pl/plpgsql/src/gram.y.diff?r1=1.62&r2=1.63)