Avoid crash in "postgres -C guc" for a GUC with a null string value.
Emit "(null)" instead, which was the behavior all along on platforms
that don't crash, eg OS X. Per report from Jehan-Guillaume de Rorthais.
Back-patch to 9.2 where -C option was introduced.
Michael Paquier
Report: <20160615204036.2d35d86a@firost>
Branch
------
REL9_5_STABLE
Details
-------
http://git.postgresql.org/pg/commitdiff/4f5995dd983db31bce347411c16ecc7319a2d9af
Modified Files
--------------
src/backend/postmaster/postmaster.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
