Log Message:
-----------
Avoid trying to print a NULL char pointer in --describe-config. On some
platforms this works, but on some it crashes. Zdenek Kotala
Modified Files:
--------------
pgsql/src/backend/utils/misc:
help_config.c (r1.19 -> r1.20)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/misc/help_config.c?r1=1.19&r2=1.20)