From: Eric Wong <normalperson@...>
Date: 2014-03-19T07:44:45+00:00
Subject: [ruby-core:61588] Re: [ruby-trunk - Bug #9652] Marshal doesn't dump/load Time#zone correctly with too many time object

nobu@ruby-lang.org wrote:
> Seems better to call `rb_str_new_frozen()` before setting `vtm.zone`.

OK.  Though rb_fstring() might be better because time objects
with identical zones are common.