Fixed arguments.CheckFlagsConflicts helper

Previously it would reject only if ALL the arguments in the given set are used.

Now it rejects if AT LEAST TWO arguments of the given set are used.

Author: cmaglie

internal/cli/arguments/arguments.go

@@ -25,12 +25,16 @@ import (
 
 // CheckFlagsConflicts is a helper function useful to report errors when more than one conflicting flag is used
 func CheckFlagsConflicts(command *cobra.Command, flagNames ...string) {
+	var used []string
 	for _, flagName := range flagNames {
-		if !command.Flag(flagName).Changed {
-			return
+		if command.Flag(flagName).Changed {
+			used = append(used, flagName)
 		}
 	}
-	flags := "--" + strings.Join(flagNames, ", --")
+	if len(used) <= 1 {
+		return
+	}
+	flags := "--" + strings.Join(used, ", --")
 	msg := i18n.Tr("Can't use the following flags together: %s", flags)
 	feedback.Fatal(msg, feedback.ErrBadArgument)
 }