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(dot)2d35d86a(at)firost>
Branch
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REL9_2_STABLE
Details
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http://git.postgresql.org/pg/commitdiff/23ed284a5dda5286bd91bb601f30e5e6fae478af
Modified Files
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src/backend/postmaster/postmaster.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)