pgsql: Awhile back we replaced all uses of strcasecmp and strncasecmp

Log Message:
-----------
Awhile back we replaced all uses of strcasecmp and strncasecmp with
pg_strcasecmp and pg_strncasecmp ... but I see some of the former have
crept back in.
Eternal vigilance is the price of locale independence, apparently.

Modified Files:
--------------
    pgsql/src/backend/libpq:
        auth.c (r1.126 -> r1.127)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/libpq/auth.c.diff?r1=1.126&r2=1.127)
    pgsql/src/bin/initdb:
        initdb.c (r1.92 -> r1.93)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/initdb/initdb.c.diff?r1=1.92&r2=1.93)
    pgsql/src/bin/pg_ctl:
        pg_ctl.c (r1.59 -> r1.60)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_ctl/pg_ctl.c.diff?r1=1.59&r2=1.60)
    pgsql/src/bin/pg_dump:
        pg_dumpall.c (r1.64 -> r1.65)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/pg_dumpall.c.diff?r1=1.64&r2=1.65)