patch 8.2.2856: get readonly error for device that can't be written to Commit: https://github.com/vim/vim/commit/50157ef1c2e36d8696e79fd688bdd08312196bc6 Author: Bram Moolenaar <Bram@vim.org> Date: Sat May 15 23:21:05 2021 +0200 patch 8.2.2856: get readonly error for device that can't be written to Problem: Get readonly error for device that can't be written to. Solution: Check for being able to write first. (closes https://github.com/vim/vim/issues/8205)

#! /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