commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd Author: Bram Moolenaar <Bram@vim.org> Date: Tue Jul 19 19:10:51 2016 +0200 patch 7.4.2072 Problem: substitute() does not support a Funcref argument. Solution: Support a Funcref like it supports a string starting with "\=".

#! /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