From 1db9ce8e7e6c62ccdc2dc96b3d99358f1f97b894 Mon Sep 17 00:00:00 2001
From: Alexandre ZANNI <16578570+noraj@users.noreply.github.com>
Date: Sun, 9 Apr 2023 20:40:02 +0200
Subject: [PATCH] [chore] case insensitive regexp

---
 lib/docopt.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/docopt.rb b/lib/docopt.rb
index dee2744..ab3a75f 100644
--- a/lib/docopt.rb
+++ b/lib/docopt.rb
@@ -579,7 +579,7 @@ def parse_defaults(doc)
     end
 
     def printable_usage(doc)
-      usage_split = doc.split(/([Uu][Ss][Aa][Gg][Ee]:)/)
+      usage_split = doc.split(/(Usage:)/i)
       if usage_split.count < 3
         raise DocoptLanguageError, '"usage:" (case-insensitive) not found.'
       end