Thread: pgsql: Clean up unnecessary unportability and compiler warnings by

Log Message:
-----------
Clean up unnecessary unportability and compiler warnings by removing the
cmp parameter for pg_scandir().  The code failed to support this anyway
for Sun/Windows, so pretending we could accept a parameter other than
NULL was just asking for trouble.

Modified Files:
--------------
    pgsql/contrib/pg_upgrade:
        file.c (r1.1 -> r1.2)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/contrib/pg_upgrade/file.c?r1=1.1&r2=1.2)
        pg_upgrade.h (r1.1 -> r1.2)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/contrib/pg_upgrade/pg_upgrade.h?r1=1.1&r2=1.2)
        relfilenode.c (r1.1 -> r1.2)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/contrib/pg_upgrade/relfilenode.c?r1=1.1&r2=1.2)