sensible.vim: map()+copy() -> change join() sep

Author: mralusw

plugin/sensible.vim

@@ -130,7 +130,7 @@ if has('langmap') && exists('+langremap') && &langremap
 endif
 
 function! s:CheckDefaults() abort
-  let check_str = join(map(copy(s:default_opts), 'v:val . "?"'), ' ')
+  let check_str = join(s:default_opts, '? ') . '?'
   let s:global_settings = s:Execute('verbose setglobal all lines? ' . check_str)
   " 'lines=' delimits the start of the answer
   let s:global_settings = substitute(s:global_settings, '.*lines=[^\n]*', '', '') . "\n"