ctdb-tests: rename tests from stubby.* to ctdb.*

These tests do not use ctdb tool stub anymore.

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>

Autobuild-User(master): Amitay Isaacs <amitay@samba.org>
Autobuild-Date(master): Wed May 11 02:19:20 CEST 2016 on sn-devel-144

ctdb/tests/tool/scripts/local.sh

@@ -16,8 +16,8 @@ define_test ()
     _f=$(basename "$0" ".sh")
 
     case "$_f" in
-	stubby.*)
-	    _cmd="${_f#stubby.}"
+	ctdb.*)
+	    _cmd="${_f#ctdb.}"
 	    _cmd="${_cmd%.*}" # Strip test number
 	    export CTDB="ctdb --socket $ctdbd_socket"
 	    export CTDB_DEBUGLEVEL=3