[PATCH xserver] travis: Fix OSX build

[Adam Jackson]

On Tue, 2017-10-24 at 12:07 +0100, Jon Turney wrote:
> Turn off homebrew autoupdating before installing ccache, to avoid:
> 
> /usr/local/Homebrew/Library/Homebrew/brew.rb:12:in `<main>': Homebrew must
> be run under Ruby 2.3! You're running 2.0.0. (RuntimeError)
> 
> Signed-off-by: Jon Turney <jon.turney at dronecode.org.uk>

Just noticed this too, thanks. Merged:

remote: E: failed to find patch for rev 5893e72a20ffa5cfcd6d0c7c5c934b92546d76c3.
remote: I: 0 patch(es) updated to state Accepted.
To ssh://git.freedesktop.org/git/xorg/xserver
   f44935cdb7..5893e72a20  master -> master

- ajax