Log Message:
-----------
Remove sometimes inaccurate error hint about source of wrongly encoded data.
Modified Files:
--------------
pgsql/src/backend/utils/mb:
wchar.c (r1.73 -> r1.74)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/wchar.c?r1=1.73&r2=1.74)