vim/ftplugin/help.vim

   1 setlocal textwidth=78
   2 setlocal listchars-=extends:❯,precedes:❮
   3 setlocal sidescroll=0
   4 setlocal sidescrolloff=0
   5 setlocal signcolumn=no
   6 setlocal winfixwidth
   7 wincmd L
   8 vertical resize 80
   9 normal ze