pgsql: Update source code comment about when to use gettext_noop().
Log Message:
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Update source code comment about when to use gettext_noop().
Modified Files:
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pgsql/src/include:
c.h (r1.228 -> r1.229)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/include/c.h?r1=1.228&r2=1.229)