[PATCH] util: fix crash converting an invalid future date to string

[Matt Mackall]

On Tue, 2011-09-27 at 14:57 -0500, Matt Mackall wrote:
> On Fri, 2011-09-23 at 11:45 -0400, Kevin Gessner wrote:
> > # HG changeset patch
> > # User Kevin Gessner <kevin at fogcreek.com>
> > # Date 1316793747 25200
> > # Node ID 74c597ca2fcf83e88c746c7d902b4152e6b818b8
> > # Parent  91dc8878f88857f01b86a99ad047400704b5fd7e
> > util: fix crash converting an invalid future date to string
> 
> Queued for stable, thanks.

ps: This could use some doctests.

-- 
Mathematics is the supreme nostalgia of our time.