MFH: r433526 r434137 r434189

Update to 67

Note that all FreeBSD patches have been upstreamed and more
In particular the requirement for /dev/fd has gone

sysutils/py-diffoscope: update to version 71

sysutils/py-diffoscope: update to v77

PR: 216729
Approved by: portmgr (swills)
Security: CVE-2017-0359
Sponsored by: The FreeBSD Foundation