2.30 branch created, snapshot available

[Nick Clifton]

Hi Franz,

> I just stumbled over this with 2.29.1 while building a cross-toolchain, on Cygwin64, but it's still the same for 2.30. m.arena has size_t on Cygwin64 and thus errors out due to -Werror=format.
> 
> This little patch (similar to code further below) fixes it.
> 
> 2018-01-24  Franz Sirl  <franz.sirl-kernel@lauterbach.com>
> 
> Â Â Â Â * main.cc: Print m.arena as long long.

This looks OK to me.  I will leave it to the Gold maintainers to decide
on its fate on the mainline, but i have taken the liberty of applying it
to the 2.30 branch sources.

Cheers
  Nick