action: enable gofmt lint; fix dupword.go formatting

Author: alexandear

.github/workflows/lint.yml

@@ -22,6 +22,7 @@ jobs:
       uses: golangci/golangci-lint-action@v3.2.0
       with:
         version: latest
+        args: --enable=gofmt
 
     - name: Build
       run: go build -v ./...

dupword.go

@@ -75,15 +75,15 @@ type ignore struct {
 }
 
 func (a *ignore) String() string {
-	t := make([]string,0,  len(ignoreWord))
+	t := make([]string, 0, len(ignoreWord))
 	for k := range ignoreWord {
 		t = append(t, k)
 	}
 	return strings.Join(t, ",")
 }
 
 func (a *ignore) Set(w string) error {
-	for _, k := range strings.Split(w, ","){
+	for _, k := range strings.Split(w, ",") {
 		ignoreWord[k] = true
 	}
 	return nil