From 2e423a77ea946a0356a7ccd5e5af4178682b931c Mon Sep 17 00:00:00 2001
From: Akshat Raj <154466152+AkshatRaj00@users.noreply.github.com>
Date: Sun, 24 May 2026 02:18:34 +0530
Subject: [PATCH] Fix: Use visibility.base consistently in generateHelpNames
 for .longWithSingleDash

Previously, the `.longWithSingleDash` case used `visibility` (full
description) while the `.long` case correctly used `visibility.base`
when generating non-default help flag names. This inconsistency would
cause `.longWithSingleDash` help names to have a different suffix than
their `.long` counterparts.

Fixes #901
---
 Sources/ArgumentParser/Usage/HelpGenerator.swift | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Sources/ArgumentParser/Usage/HelpGenerator.swift b/Sources/ArgumentParser/Usage/HelpGenerator.swift
index 1b46b73d5..7bc0c682e 100644
--- a/Sources/ArgumentParser/Usage/HelpGenerator.swift
+++ b/Sources/ArgumentParser/Usage/HelpGenerator.swift
@@ -444,7 +444,7 @@ extension NameSpecification {
         case .long(let helpName):
           return .long("\(helpName)-\(visibility.base)")
         case .longWithSingleDash(let helpName):
-          return .longWithSingleDash("\(helpName)-\(visibility)")
+          return .longWithSingleDash("\(helpName)-\(visibility.base)")  // Fix: use .base for consistency with .long case
         case .short:
           // Cannot create a non-default help flag from a short name.
           return nil