From f3af39b8e45632ba39d7ae6a4f0b435a1c8908a9 Mon Sep 17 00:00:00 2001
From: Masafumi Koba <473530+ybiquitous@users.noreply.github.com>
Date: Sun, 19 Jul 2026 23:35:19 +0900
Subject: [PATCH] Fix `-h` CLI option

Fixes the `Unknown switch: "-h"` error message when running `erb -h`:

```sh-session
$ libexec/erb -h 2>&1 | head -3
Unknown switch: "-h"
Usage:
  erb [options] [filepaths]
```

The short `-h` option is already documented in the help message:

```sh-session
$ libexec/erb --help 2>&1 | grep 'help'
  -h          --help       Print this text and exit.
```
---
 libexec/erb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libexec/erb b/libexec/erb
index de7d588..76635be 100755
--- a/libexec/erb
+++ b/libexec/erb
@@ -89,7 +89,7 @@ class ERB
             set_encoding(Encoding::UTF_8, Encoding::UTF_8)
           when '-P'
             disable_percent = true
-          when '--help'
+          when '-h', '--help'
             raise ''
           when /\A-/
             raise "Unknown switch: #{switch.dump}"