Update vendor (#1414)

vendor/github.com/labstack/echo/v4/Makefile

@@ -1,3 +1,34 @@
+PKG := "github.com/labstack/echo"
+PKG_LIST := $(shell go list ${PKG}/...)
+
 tag:
 	@git tag `grep -P '^\tversion = ' echo.go|cut -f2 -d'"'`
 	@git tag|grep -v ^v
+
+.DEFAULT_GOAL := check
+check: lint vet race ## Check project
+
+init:
+	@go get -u golang.org/x/lint/golint
+
+lint: ## Lint the files
+	@golint -set_exit_status ${PKG_LIST}
+
+vet: ## Vet the files
+	@go vet ${PKG_LIST}
+
+test: ## Run tests
+	@go test -short ${PKG_LIST}
+
+race: ## Run tests with data race detector
+	@go test -race ${PKG_LIST}
+
+benchmark: ## Run benchmarks
+	@go test -run="-" -bench=".*" ${PKG_LIST}
+
+help: ## Display this help screen
+	@grep -h -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'
+
+goversion ?= "1.15"
+test_version: ## Run tests inside Docker with given version (defaults to 1.15 oldest supported). Example: make test_version goversion=1.15
+	@docker run --rm -it -v $(shell pwd):/project golang:$(goversion) /bin/sh -c "cd /project && make init check"