Better support for binary file grep results

plugin/fugitive.vim

@@ -1260,7 +1260,7 @@ function! s:Grep(cmd,bang,arg) abort
   try
     execute cd.'`=s:repo().tree()`'
     let &grepprg = s:repo().git_command('--no-pager', 'grep', '-n', '--no-color')
-    let &grepformat = '%f:%l:%m,%f'
+    let &grepformat = '%f:%l:%m,%m %f match%ts,%f'
     exe a:cmd.'! '.escape(matchstr(a:arg,'\v\C.{-}%($|[''" ]\@=\|)@='),'|')
     let list = a:cmd =~# '^l' ? getloclist(0) : getqflist()
     for entry in list