patch 8.0.1420: accessing freed memory in vimgrep commit https://github.com/vim/vim/commit/3c09722600e3218905b5d4a7b635a9e6560f87b3 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Dec 21 20:54:49 2017 +0100 patch 8.0.1420: accessing freed memory in vimgrep Problem: Accessing freed memory in vimgrep. Solution: Check that the quickfix list is still valid. (Yegappan Lakshmanan, closes #2474)

#! /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