Update Makefile

Makefile

@@ -14,7 +14,7 @@ GO_PACKAGES = $(shell $(GO_LIST) $(GO_PKGROOT))
 GO_LDFLAGS  = 
 
 clean: ## Clean project
-	-rm -rf $(APP) cover.out cover.html
+	-rm -rf $(APP) coverage.out coverage.html
 
 test: ## Start unit test for server
 	env GOOS=$(GOOS) $(GO_TEST) -cover -coverpkg=$(GO_PKGROOT) -coverprofile=coverage.out $(GO_PKGROOT)
@@ -23,4 +23,4 @@ test: ## Start unit test for server
 .DEFAULT_GOAL := help
 help: ## Show help message  
 	@grep -E '^[0-9a-zA-Z_-]+[[:blank:]]*:.*?## .*$$' $(MAKEFILE_LIST) | sort \
-	| awk 'BEGIN {FS = ":.*?## "}; {printf "\033[1;32m%-15s\033[0m %s\n", $$1, $$2}'
+	| awk 'BEGIN {FS = ":.*?## "}; {printf "\033[1;32m%-15s\033[0m %s\n", $$1, $$2}'