Fix gometalinter warnings

app.go

@@ -202,7 +202,7 @@ func getInput() (string, error) {
 
 func promptAndGet(prompt string) (string, error) {
 	for {
-		fmt.Printf(prompt)
+		fmt.Print(prompt)
 		input, err := getInput()
 		if err != nil {
 			log.Printf("Failed to get input, aborting: %s", err)
@@ -217,9 +217,9 @@ func promptAndGet(prompt string) (string, error) {
 
 func promptAndGetPassword(prompt string) (string, error) {
 	for {
-		fmt.Printf(prompt)
+		fmt.Print(prompt)
 		password, err := terminal.ReadPassword(int(os.Stdin.Fd()))
-		fmt.Printf("\n")
+		fmt.Print("\n")
 		if err != nil {
 			log.Printf("Failed to get input, aborting: %s", err)
 			return "", err

control.go

@@ -669,12 +669,7 @@ func (filter *filter) save() error {
 	filterFilePath := filter.Path()
 	log.Printf("Saving filter %d contents to: %s", filter.ID, filterFilePath)
 
-	err := safeWriteFile(filterFilePath, filter.Contents)
-	if err != nil {
-		return err
-	}
-
-	return nil
+	return safeWriteFile(filterFilePath, filter.Contents)
 }
 
 // loads filter contents from the file in dataDir

helpers.go

@@ -31,12 +31,7 @@ func safeWriteFile(path string, data []byte) error {
 	if err != nil {
 		return err
 	}
-	err = os.Rename(tmpPath, path)
-	if err != nil {
-		return err
-	}
-
-	return nil
+	return os.Rename(tmpPath, path)
 }
 
 // ----------------------------------

i18n.go

@@ -24,10 +24,7 @@ var allowedLanguages = map[string]bool{
 
 func isLanguageAllowed(language string) bool {
 	l := strings.ToLower(language)
-	if allowedLanguages[l] {
-		return true
-	}
-	return false
+	return allowedLanguages[l]
 }
 
 func handleI18nCurrentLanguage(w http.ResponseWriter, r *http.Request) {