commit https://github.com/vim/vim/commit/319afe3804741db5a6c188bd69535fa7ed044c62 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Nov 24 18:30:59 2016 +0100 patch 8.0.0100 Problem: Options that are a file name may contain non-filename characters. Solution: Check for more invalid characters.

#! /bin/sh
#
# which.sh -- find where an executable is located.  It's here because the
# "which" command is not supported everywhere.  Used by Makefile.

IFS=":"
for ac_dir in $PATH; do
	if test -f "$ac_dir/$1"; then
		echo "$ac_dir/$1"
		break
	fi
done