patch 8.2.2603: Vim9: no effect if user command is also a function Commit: https://github.com/vim/vim/commit/77b10ffad4ebad15022614be4db2745f6a90f405 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Mar 14 13:21:35 2021 +0100 patch 8.2.2603: Vim9: no effect if user command is also a function Problem: Vim9: no effect if user command is also a function. Solution: Check for paren following. (closes https://github.com/vim/vim/issues/7960)

@echo off
rem batch file to start Vim with less.vim.
rem Read stdin if no arguments were given.
rem Written by Ken Takata.

if "%1"=="" (
  vim --cmd "let no_plugin_maps = 1" -c "runtime! macros/less.vim" -
) else (
  vim --cmd "let no_plugin_maps = 1" -c "runtime! macros/less.vim" %*
)