thanks for committing the up stream changes  to resolve the repeated
50 day hangs on 11.0R. It seems the PORTREVISION bump is missing which
means binary packages won't realise there is a very useful change included. Please bump it!
A commit references this bug:
Date: Wed Apr 19 20:15:53 UTC 2017
New revision: 438911
Bump PORTREVISION due to recent changes.
Submitted by: Dave Cottlehuber <email@example.com>