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.
Back-patch of previous fix in HEAD for plperl-vs-locale issue.

Tags:
----
REL8_1_STABLE

Modified Files:
--------------
    pgsql/src/backend/access/transam:
        xlog.c (r1.222.2.1 -> r1.222.2.2)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/transam/xlog.c.diff?r1=1.222.2.1&r2=1.222.2.2)
    pgsql/src/backend/main:
        main.c (r1.96.2.1 -> r1.96.2.2)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/main/main.c.diff?r1=1.96.2.1&r2=1.96.2.2)
    pgsql/src/backend/utils/adt:
        pg_locale.c (r1.32 -> r1.32.2.1)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/pg_locale.c.diff?r1=1.32&r2=1.32.2.1)
    pgsql/src/include/utils:
        pg_locale.h (r1.20 -> r1.20.2.1)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/utils/pg_locale.h.diff?r1=1.20&r2=1.20.2.1)