Meta: Allow overlong 'fixup!' commit titles in pre-commit hook

Author: https://github.com/BenWiederhake
Commit: 7ba7668fbb
Pull-request: https://github.com/SerenityOS/serenity/pull/11119
Reviewed-by: https://github.com/bgianfo

Meta/lint-commit.sh

@@ -24,6 +24,8 @@ while read -r line; do
 
   # ignore comment lines
   [[ "$line" =~ ^#.* ]] && continue
+  # ignore overlong 'fixup!' commit descriptions
+  [[ "$line" =~ ^fixup!\ .* ]] && continue
 
   ((line_number += 1))
   line_length=${#line}