feat: and go vet check (swaggo#336)

* fix govet error

* add go vet check

* add target and vet step

.travis.yml

@@ -19,6 +19,7 @@ install:
 script:
   - make fmt-check
   - make lint
+  - make vet
   - make build
   - make test
 

Makefile

@@ -7,6 +7,7 @@ GOCLEAN:=$(GOCMD) clean
 GOTEST:=$(GOCMD) test
 GOGET:=$(GOCMD) get
 GOLIST:=$(GOCMD) list
+GOVET:=$(GOCMD) vet
 
 BINARY_NAME:=swag
 PACKAGES:=$(shell $(GOLIST) ./...)
@@ -56,6 +57,10 @@ lint:
 
 	for PKG in $(PACKAGES); do golint -set_exit_status $$PKG || exit 1; done;
 
+.PHONY: vet
+vet:
+	$(GOVET) $(PACKAGES)
+
 .PHONY: fmt
 fmt:
 	$(GOFMT) -s -w $(GOFILES)

operation_test.go

@@ -544,7 +544,7 @@ func TestParseParamCommentByEnums(t *testing.T) {
 	assert.Equal(t, expected, string(b))
 }
 
-func TestlParseParamCommentByMaxLength(t *testing.T) {
+func TestParseParamCommentByMaxLength(t *testing.T) {
 	comment := `@Param some_id query string true "Some ID" MaxLength(10)`
 	operation := NewOperation()
 	err := operation.ParseComment(comment, nil)