patch 8.1.0264: backup tests fail when CWD is in /tmp commit https://github.com/vim/vim/commit/efe03738f69b1f63ea30226765db949539ee15f0 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Aug 9 22:26:38 2018 +0200 patch 8.1.0264: backup tests fail when CWD is in /tmp Problem: Backup tests fail when CWD is in /tmp. Solution: Make 'backupskip' empty. (Christian Brabandt, closes https://github.com/vim/vim/issues/3301)

#! /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