SUNRPC: fix build-warning due to format missmatch

fix build-warning introduced by commit: f0eede10fd4 ("SUNRPC: use
jiffies_to_msecs for converting jiffies") which did not fixup
the format properly (my bad).

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

net/sunrpc/sched.c

@@ -89,8 +89,8 @@ __rpc_add_timer(struct rpc_wait_queue *queue, struct rpc_task *task)
 	if (!task->tk_timeout)
 		return;
 
-	dprintk("RPC: %5u setting alarm for %lu ms\n",
-			task->tk_pid, jiffies_to_msecs(task->tk_timeout));
+	dprintk("RPC: %5u setting alarm for %u ms\n",
+		task->tk_pid, jiffies_to_msecs(task->tk_timeout));
 
 	task->u.tk_wait.expires = jiffies + task->tk_timeout;
 	if (list_empty(&queue->timer_list.list) || time_before(task->u.tk_wait.expires, queue->timer_list.expires))