pgsql: Reduce chatter from _dosmaperr() when used in FRONTEND code.

Log Message:
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Reduce chatter from _dosmaperr() when used in FRONTEND code.
ITAGAKI Takahiro

Modified Files:
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pgsql/src/port:
win32error.c (r1.4 -> r1.5)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/port/win32error.c?r1=1.4&r2=1.5)