patch 9.0.0771: cannot always tell the difference beween tex and rexx files Commit: https://github.com/vim/vim/commit/bd053f894b0d7652928201faa68c53d1ce2acdc5 Author: Martin Tournoij <martin@arp242.net> Date: Sun Oct 16 12:49:12 2022 +0100 patch 9.0.0771: cannot always tell the difference beween tex and rexx files Problem: Cannot always tell the difference beween tex and rexx files. Solution: Recognize tex by a leading backslash. (Martin Tournoij, closes #11380)