Log Message:
Update of news/leafnode to 1.9.49.

Pkgsrc changes since previous version:
* Add the news user if necessary (and be compatible with the INN package).
* Use bsd.pkg.install.mk.

Vendor changes since previous version:
(see the Changelog for more details)

* Security fix. Do not lock up when the news header ends prematurely.
* Revise some memory handling and catch out-of-memory conditions.
* Fixes to syslog handling.
* Support XOVER without argument.
* Fix SEGV in fetchnews.c.