xprtrdma: clean up some curly braces

It doesn't matter either way, but the curly braces were clearly intended
here.  It causes a Smatch warning.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

net/sunrpc/xprtrdma/verbs.c

@@ -852,12 +852,13 @@ rpcrdma_ep_connect(struct rpcrdma_ep *ep, struct rpcrdma_ia *ia)
 
 		if (extras) {
 			rc = rpcrdma_ep_post_extra_recv(r_xprt, extras);
-			if (rc)
+			if (rc) {
 				pr_warn("%s: rpcrdma_ep_post_extra_recv: %i\n",
 					__func__, rc);
 				rc = 0;
 			}
 		}
+	}
 
 out:
 	if (rc)