commit https://github.com/vim/vim/commit/40e8cb292c36f5057628e570591e8917ac1ca121 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Mar 10 21:10:58 2016 +0100 patch 7.4.1531 Problem: Compiler warning for unitinialized variable. (Dominique Pelle) Solution: Always give the variable a value.

@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" %*
)