Log Message:
-----------
Force LANG=en on Windows, since system may fail to default to English.
Modified Files:
--------------
pgsql/src/test/regress:
pg_regress.sh (r1.49 -> r1.50)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/pg_regress.sh.diff?r1=1.49&r2=1.50)