pgsql: Make use of additional chklocale.c entries to reject locales that

Log Message:
-----------
Make use of additional chklocale.c entries to reject locales that we
cannot support.

Modified Files:
--------------
pgsql/src/bin/initdb:
initdb.c (r1.143 -> r1.144)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/initdb/initdb.c?r1=1.143&r2=1.144)