clientv3/integration: fix typos

Signed-off-by: Gyu-Ho Lee <gyuhox@gmail.com>

clientv3/integration/network_partition_test.go

@@ -80,8 +80,8 @@ func testNetworkPartitionBalancer(t *testing.T, op func(*clientv3.Client, contex
 		if err == nil {
 			break
 		}
-		// todo: separate put and get test for error checking.
-		// we do not really expect errTimeout on get.
+		// TODO: separate put and get test for error checking.
+		// we do not really expect ErrTimeout on get.
 		if err != context.DeadlineExceeded && err != rpctypes.ErrTimeout {
 			t.Errorf("#%d: expected %v or %v, got %v", i, context.DeadlineExceeded, rpctypes.ErrTimeout, err)
 		}

clientv3/integration/watch_keepalive_test.go

@@ -46,7 +46,7 @@ func TestWatchKeepAlive(t *testing.T) {
 		DialKeepAliveTimeout: 500 * time.Millisecond,
 	}
 
-	// gRPC internal implmentation related.
+	// gRPC internal implementation related.
 	pingInterval := ccfg.DialKeepAliveTime + ccfg.DialKeepAliveTimeout
 	timeout := pingInterval + 2*time.Second // 2s for slow machine to process watch and reset connections