Fix :'<,'>Rails on newer Vim versions

Closes tpope#549

Author: tpope

plugin/rails.vim

@@ -114,7 +114,7 @@ augroup railsPluginDetect
         \ endif
 augroup END
 
-command! -bang -bar -nargs=* -count -complete=customlist,rails#complete_rails Rails execute rails#command(<bang>0, '<mods>', !<count> && <line1> ? -1 : <count>, <q-args>)
+command! -bang -bar -nargs=* -range=-1 -complete=customlist,rails#complete_rails Rails execute rails#command(<bang>0, '<mods>', <count>, <q-args>)
 
 " }}}1
 " dadbod.vim support {{{1