patch 8.1.1639: changing an autoload name into a file name is inefficient commit https://github.com/vim/vim/commit/28fc247f8d94a1cfabbcf2691ca942bde96f6d2f Author: Bram Moolenaar <Bram@vim.org> Date: Fri Jul 5 22:14:16 2019 +0200 patch 8.1.1639: changing an autoload name into a file name is inefficient Problem: Changing an autoload name into a script file name is inefficient. Solution: Remember the last replaced #. (Ozaki Kiichi, closes https://github.com/vim/vim/issues/4618)

" Vim filetype plugin file
" Language:     Vim's quickfix window
" Maintainer:   Lech Lorens <Lech.Lorens@gmail.com>
" Last Changed: 30 Apr 2012

if exists("b:did_ftplugin")
  finish
endif

" Don't load another plugin for this buffer
let b:did_ftplugin = 1

let b:undo_ftplugin = "set stl<"

" Display the command that produced the list in the quickfix window:
setlocal stl=%t%{exists('w:quickfix_title')?\ '\ '.w:quickfix_title\ :\ ''}\ %=%-15(%l,%c%V%)\ %P