Log Message:
The nostromo pkgsrc package contained patches against upstream
v1.9.6 for CVE-2019-16278 and CVE-2019-16279 which were later
integrated by the nostromo author in version v1.9.7.

A while later, the author also released v1.9.8 and then re-released
it as v1.9.9 containing the security patches (including one more to
catch a potential buffer overflow in libmy, part of nostromo).

This update obviates the need for pkgsrc patches as they are included
in v1.9.9 now.

No functional changes to nostromo between v1.9.6 and v.1.9.9.