add False method

thirdparty/assert/assert.go

@@ -14,6 +14,10 @@ func True(v bool, t *testing.T, msgs ...string) {
 	}
 }
 
+func False(v bool, t *testing.T, msgs ...string) {
+	True(!v, t, msgs...)
+}
+
 func Err(err error, t *testing.T, msgs ...string) {
 	if err == nil {
 		t.Fatal(msgs, "error:", err)