Log Message:
nettle: updated to 3.9.1

Nettle 3.9.1 release

This is a bugfix release, fixing a few bugs reported for
Nettle-3.9. The bug in the new OCB code may be exploitable for
denial of service or worse, since triggering it leads to
memory corruption. Upgrading from Nettle-3.9 to the new
version is strongly recommended.

The new version is intended to be fully source and binary
compatible with Nettle-3.6. The shared library names are
libnettle.so.8.8 and libhogweed.so.6.8, with sonames
libnettle.so.8 and libhogweed.so.6.

Bug fixes:

* Fix OCB loop for processing messages of size 272 bytes or
  larger. Reported and fixed by Jussi Kivilinna.

* Fix alignment bug in the new x86_64 non-pclmul assembly
  implementation of ghash. Reported by Henrik Grubbström.

* Fix build-time memory leak in eccdata. Reported by Noah
  Watkins.