patch 8.2.3920: restoring directory after using another window is inefficient Commit: https://github.com/vim/vim/commit/90c317f2246a7fb4bd4e3feb0778b53627bc9fad Author: Bram Moolenaar <Bram@vim.org> Date: Tue Dec 28 13:15:05 2021 +0000 patch 8.2.3920: restoring directory after using another window is inefficient Problem: Restoring directory after using another window is inefficient. Solution: Only restore the directory for win_execute(). Apply 'autochdir' only when needed.

#! /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