[PATCH] log: fix log -f slow path to actually follow history

[Matt Mackall]

On Fri, 2014-12-05 at 14:54 -0800, Durham Goode wrote:
> # HG changeset patch
> # User Durham Goode <durham at fb.com>
> # Date 1417818452 28800
> #      Fri Dec 05 14:27:32 2014 -0800
> # Node ID 96d916622019f448bd012884ee4fd78fe8dc63ba
> # Parent  406dfc63a1ad71213dccc1a45de99a3c5d5ac460
> log: fix log -f slow path to actually follow history
> 
> log -f was using ':.' instead of '::.' so it wasn't actually following history.
> This fixes it and adds a test. It's been broken for years, so I guess it wasn't
> that big of a deal...

Actually, log wasn't able to use revsets until we made them lazy, so
this bug is still newish.

-- 
Mathematics is the supreme nostalgia of our time.