[parser] add copy go.mod1 to go.mod in Makefile (pingcap#588)

tangenta · web-flow · commit 5a60a0422ae6 · 2019-10-29T13:39:47.000+08:00
diff --git a/parser/Makefile b/parser/Makefile
@@ -39,3 +39,6 @@ clean:
 	go clean -i ./...
 	rm -rf *.out
 	rm parser.go
+
+cpmod:
+	cp go.mod1 go.mod && cp go.sum1 go.sum
