pgsql: Arrange to set the LC_XXX environment variables to match our

Log Message:
-----------
Arrange to set the LC_XXX environment variables to match our locale
setup.  This protects against undesired changes in locale behavior
if someone carelessly does setlocale(LC_ALL, "") (and we know who
you are, perl guys).

Modified Files:
--------------
    pgsql/src/backend/access/transam:
        xlog.c (r1.223 -> r1.224)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/transam/xlog.c.diff?r1=1.223&r2=1.224)
    pgsql/src/backend/main:
        main.c (r1.97 -> r1.98)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/main/main.c.diff?r1=1.97&r2=1.98)
    pgsql/src/backend/utils/adt:
        pg_locale.c (r1.32 -> r1.33)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/pg_locale.c.diff?r1=1.32&r2=1.33)
    pgsql/src/include/utils:
        pg_locale.h (r1.20 -> r1.21)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/utils/pg_locale.h.diff?r1=1.20&r2=1.21)