commit https://github.com/vim/vim/commit/9ad73239c26467832a5b553b2a4b99d7ffbaa25e Author: Bram Moolenaar <Bram@vim.org> Date: Wed Jun 1 22:08:17 2016 +0200 patch 7.4.1865 Problem: Memory leaks in tet49. (Dominique Pelle) Solution: Use NULL instead of an empty string.

#! /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