[PATCH] update .gitignore

[Holger Weiß]

* Sebastian Herbszt <herbszt at gmx.de> [2014-11-29 00:54]:
> Holger Weiß wrote:
> > * Sebastian Herbszt <herbszt at gmx.de> [2014-11-27 00:05]:
> > > Add build-aux/test-driver to .gitignore.
> > 
> > I'm not sure how you ended up with a build-aux/test-driver file(?) ...
> 
> [...]
> 
> automake (GNU automake) 1.13.4

Ah, my Automake was older.  Applied, thank you.

Holger