Fix typo in kaserver appendix

Fix typo in kaserver appendix

Though it's very unlikely that someone would actually want to
set up a new kaserver installation, if we have documentation for
it, it ought to at least do what it claims to do.

Thus, change kinit to klog where it was intended.

Reported by Karl-Philipp Richter.

FIXES 133043

Reviewed-on: https://gerrit.openafs.org/12286
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Benjamin Kaduk <kaduk@mit.edu>
(cherry picked from commit 4bd716223492aec23599a5ac01bce3cc47160bfd)

Change-Id: I0390a260e53a978e5a45aaff19b832c2d4dc4f9b
Reviewed-on: https://gerrit.openafs.org/12304
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Mark Vitale <mvitale@sinenomine.net>
Reviewed-by: Stephan Wiesand <stephan.wiesand@desy.de>