fix "initialize miss".

* dir.c (glob_helper): initialize `args.pathtype`.
  missed at r64810.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64849 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

dir.c

@@ -2150,6 +2150,7 @@ glob_helper(
 	args.baselen = baselen;
 	args.namelen = namelen;
 	args.dirsep = dirsep;
+	args.pathtype = pathtype;
 	args.flags = flags;
 	args.funcs = funcs;
 	args.arg = arg;