nnmairix.el: Fix up Version: header that might confuse package.el
* gnus-srvr.el (gnus-tmp-how, gnus-tmp-name, gnus-tmp-where)
(gnus-tmp-status, gnus-tmp-agent, gnus-tmp-cloud)
(gnus-tmp-news-server, gnus-tmp-news-method, gnus-tmp-user-defined):
Silence compiler warnings.
(gnus-server-insert-server-line): Don't use dyn-bind var as argument.