[build, doc, testsuite] Centralise clearing hardware capabilities with Sun ld

[Mike Stump]

On May 27, 2014, at 1:04 AM, Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> wrote:
> It's been a week since I've submitted the patch, so far having received
> approval for the testsuite parts only.

So, I read the doc bits, and they look fine.  I’m not a doc reviewer, but, the changes are usual and customary for a port, and trivial.