update for www/h2o to 1.4.2

[Kurt Jaeger]

Hi!

> This needs a committer's tender touch please.
> 
> We missed a couple releases while I was on vacation, would be nice to
> catch up again. Straightforwards patch, the setuidgid binary is in the
> place recommended by upstream project in
> https://github.com/h2o/h2o/issues/426
> 
> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200998

Test-builds were fine on 10.1a, 9.3a, 10.1i, so: Done.

-- 
pi at opsec.eu            +49 171 3101372                         5 years to go !