Refactoring: move firstOrEmtpy function to validate command, as it is the last command still using it

Signed-off-by: Silvin Lubecki <[email protected]>

Author: silvin-lubecki

internal/commands/root.go

@@ -96,13 +96,6 @@ func removeExperimentalCmdsAndFlags(cmd *cobra.Command) {
 	}
 }
 
-func firstOrEmpty(list []string) string {
-	if len(list) != 0 {
-		return list[0]
-	}
-	return ""
-}
-
 func muteDockerCli(dockerCli command.Cli) func() {
 	stdout := dockerCli.Out()
 	stderr := dockerCli.Err()

internal/commands/validate.go

@@ -62,3 +62,10 @@ func runValidate(args []string, opts validateOptions) error {
 	fmt.Fprintf(os.Stdout, "Validated %q\n", app.Path)
 	return nil
 }
+
+func firstOrEmpty(list []string) string {
+	if len(list) != 0 {
+		return list[0]
+	}
+	return ""
+}