Log Message:
-----------
Fix GUC's reports of assign_hook failure to always include the parameter value
we failed to assign, even in "can't happen" cases. Motivated by wondering
what's going on in a recent trouble report where "failed to commit" did
happen.
Modified Files:
--------------
pgsql/src/backend/utils/misc:
guc.c (r1.497 -> r1.498)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/misc/guc.c?r1=1.497&r2=1.498)