Refactor coverage profile with multiple packages (#6167)

Author: appleboy

Makefile

@@ -176,7 +176,7 @@ coverage:
 
 .PHONY: unit-test-coverage
 unit-test-coverage:
-	for PKG in $(PACKAGES); do $(GO) test -tags='sqlite sqlite_unlock_notify' -cover -coverprofile $$GOPATH/src/$$PKG/coverage.out $$PKG || exit 1; done;
+	$(GO) test -tags='sqlite sqlite_unlock_notify' -cover -coverprofile coverage.out $(PACKAGES) && echo "\n==>\033[32m Ok\033[m\n" || exit 1
 
 .PHONY: vendor
 vendor: