Log Message:
-----------
Reset flex state in a way that works for both flex 2.5.4 and 2.5.31.
Modified Files:
--------------
pgsql/src/backend/utils/misc:
guc-file.l (r1.33 -> r1.34)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/misc/guc-file.l.diff?r1=1.33&r2=1.34)