commit https://github.com/vim/vim/commit/3ef5bf7d459d6b8a21aaefc80f65448f5a7aa59f Author: Bram Moolenaar <Bram@vim.org> Date: Wed Jun 15 22:41:31 2016 +0200 patch 7.4.1941 Problem: Not all quickfix tests are also done with the location lists. Solution: Test more quickfix code. Use user commands instead of "exe". (Yegappan Lakshmanan)

Test if fnameescape is correct for special chars like !

STARTTEST
:so small.vim
:%d
:let fname = 'Xspa ce'
:try | exe "w! " . fnameescape(fname) | put='Space' | endtry 
:let fname = 'Xemark!'
:try | exe "w! " . fnameescape(fname) | put='ExclamationMark' | endtry
:w! test.out
:qa!
ENDTEST