pgsql: Adjust /contrib for new include file contents.

Log Message:
-----------
Adjust /contrib for new include file contents.

Modified Files:
--------------
    pgsql/contrib/btree_gist:
        btree_interval.c (r1.8 -> r1.9)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/btree_gist/btree_interval.c.diff?r1=1.8&r2=1.9)
        btree_numeric.c (r1.6 -> r1.7)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/btree_gist/btree_numeric.c.diff?r1=1.6&r2=1.7)
        btree_time.c (r1.11 -> r1.12)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/btree_gist/btree_time.c.diff?r1=1.11&r2=1.12)
        btree_utils_num.h (r1.8 -> r1.9)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/btree_gist/btree_utils_num.h.diff?r1=1.8&r2=1.9)
        btree_utils_var.c (r1.13 -> r1.14)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/btree_gist/btree_utils_var.c.diff?r1=1.13&r2=1.14)
    pgsql/contrib/pgrowlocks:
        pgrowlocks.c (r1.3 -> r1.4)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/pgrowlocks/pgrowlocks.c.diff?r1=1.3&r2=1.4)
    pgsql/contrib/tsearch2:
        ginidx.c (r1.1 -> r1.2)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/ginidx.c.diff?r1=1.1&r2=1.2)