Log Message:
-----------
Fix recent guc comment-to-default patch for custom variables.
Modified Files:
--------------
pgsql/src/backend/utils/misc:
guc.c (r1.339 -> r1.340)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/misc/guc.c.diff?r1=1.339&r2=1.340)