Add missing line.

Luma · Luma · commit 37f1d2a71f88 · 2020-02-17T10:53:27.000+09:00
diff --git a/autoload/vimlparser.vim b/autoload/vimlparser.vim
@@ -310,6 +310,7 @@ endfunction
 "   node    rest
 "   node[]  list
 "   node[]  rlist
+"   node[]  default_args
 "   node[]  body
 "   string  op
 "   string  str
