patch 9.0.1820: Rexx files may not be recognised Commit: https://github.com/vim/vim/commit/e06afb7860805537ccd69966bc03169852c9b378 Author: Doug Kearns <dougkearns@gmail.com> Date: Tue Aug 29 22:21:35 2023 +0200 patch 9.0.1820: Rexx files may not be recognised Problem: Rexx files may not be recognised Solution: Add shebang detection and improve disambiguation of *.cls files closes: #12951 Signed-off-by: Christian Brabandt <cb@256bit.org> Co-authored-by: Doug Kearns <dougkearns@gmail.com>