Re: [PATCH v2] travis-ci: run gcc-8 on linux-gcc jobs

Nguyễn Thái Ngọc Duy  [off-list ref] writes:

 v2 switches from gcc-7 to gcc-8. I initially ignored gcc 8 because it
 was too new. But it built 'pu' ok and 8.1 was already out so the
 first wave of bugs should have been gone by now.

I also liked the choice to ignore v8 for the same reason, but if it
is already mature (or maturing enough), let's use it.