patch 8.2.3402: invalid memory access when using :retab with large value Commit: https://github.com/vim/vim/commit/b7081e135a16091c93f6f5f7525a5c58fb7ca9f9 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Sep 4 18:47:28 2021 +0200 patch 8.2.3402: invalid memory access when using :retab with large value Problem: Invalid memory access when using :retab with large value. Solution: Check the number is positive.

#! /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