From aa1e6c3e3800b4c60b6b7abd3835796d012ef3d8 Mon Sep 17 00:00:00 2001
From: Viktor Szakats <commit@vsz.me>
Date: Fri, 11 Jul 2025 14:29:38 +0200
Subject: [PATCH] trimmarkdownheader.pl: enable warnings, fix one

---
 .github/scripts/trimmarkdownheader.pl | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/.github/scripts/trimmarkdownheader.pl b/.github/scripts/trimmarkdownheader.pl
index 9c623730b9..89b2e7d9fd 100755
--- a/.github/scripts/trimmarkdownheader.pl
+++ b/.github/scripts/trimmarkdownheader.pl
@@ -7,7 +7,10 @@
 # Outputs: the same file, minus the header
 #
 
-my $f = $ARGV[0];
+use strict;
+use warnings;
+
+my $f = $ARGV[0] || '';
 
 open(F, "<$f") or die;