commit https://github.com/vim/vim/commit/d43f0951bca162d4491d57df9277b5dbc462944f Author: Bram Moolenaar <Bram@vim.org> Date: Thu Aug 27 22:30:47 2015 +0200 patch 7.4.843 Problem: Still possible to go beyond the end of a string. Solution: Check for NUL also in second string. (Dominique Pelle)

#! /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