bozo: build notifier sample program

Build the smail-notifier sample program.

Reviewed-on: http://gerrit.openafs.org/5555
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
(cherry picked from commit ac88af748e25a40d062c888396aab8670ff8426a)

Change-Id: Idb845fe0a3f7fd6581f6756b899be140db625123
Reviewed-on: http://gerrit.openafs.org/9568
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Mark Vitale <mvitale@sinenomine.net>
Reviewed-by: Andrew Deason <adeason@sinenomine.net>
Reviewed-by: Stephan Wiesand <stephan.wiesand@desy.de>