backend: Fix minor memory leak in configuration file processing

Just for consistency with the other code paths.

found by Coverity

Branch
------
master

Details
-------
http://git.postgresql.org/pg/commitdiff/693ff85d47181fad123ef245cf9c28539cc3db92

Modified Files
--------------
src/backend/utils/misc/guc.c |    1 +
1 files changed, 1 insertions(+), 0 deletions(-)

pgsql-committers by date

Next:	From: Bruce Momjian	Date: 2012-03-16 22:54:26
	Subject: pgsql: In pg_upgrade,create a script to incrementally generate more ac
Previous:	From: Tom Lane	Date: 2012-03-16 18:08:05
	Subject: pgsql: Improve commentary in match_pathkeys_to_index().