commit https://github.com/vim/vim/commit/6ff02c96519946716069f05c62849986a706033b Author: Bram Moolenaar <Bram@vim.org> Date: Tue Mar 8 20:12:44 2016 +0100 patch 7.4.1522 Problem: Cannot write channel err to a buffer. Solution: Implement it.

#! /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