[RFA] trailing backslash in top-level Makefile

[Ralf Wildenhues]

* DJ Delorie wrote on Wed, Jun 03, 2009 at 12:07:47AM CEST:
> > This patch seems to fix the issue, and as such: OK to apply to GCC and
> > src?
> 
> I'm OK with it.

* Alexandre Oliva wrote on Wed, Jun 03, 2009 at 01:15:53AM CEST:
> This is ok, thanks.

Pushed, thanks!