news/nzbhydra2: Update to 2.6.2

• USE flag for python changed to python:2.7 as 3.x is not supported at this time.

Changelog can be viewed at:
https://github.com/theotherp/nzbhydra2/blob/master/changelog.md

Submitted by: Daniel Shafer <daniel shafer cc> (maintainer)
Differential Revision: https://reviews.freebsd.org/D20164