rpcbind: Fix rpcbind restart failure when rpcbind is not running

"rpcbind restart" executes stop and then start function. However, if
rpcbind is not started, "exit 0" shall be run in stop function, so start
function will not be run at all. This patch changes "exit 0" to "return 0".

(From OE-Core rev: ce17144b736b364175ab76e19e720292edfd2d81)

Signed-off-by: Zhangle Yang <zhangle.yang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/rpcbind/rpcbind/init.d

@@ -47,7 +47,7 @@ stop ()
     echo "Stopping rpcbind daemon..."
     if ! pidof /sbin/rpcbind >/dev/null; then
         echo "not running."
-        exit 0
+        return 0
     fi
     start-stop-daemon --stop --quiet --exec /sbin/rpcbind
     if [ $? -eq 0 ]; then