commit https://github.com/vim/vim/commit/3bcfca3ab4db415d0e750e00204dd25a91fcee77 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jul 30 19:39:29 2016 +0200 patch 7.4.2127 Problem: The short form of ":noswapfile" is ":noswap" instead of ":now". (Kent Sibilev) Solution: Only require three characters. Add a test for the short forms.

#! /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