Expanded the -auditlog entries in the man pages of the server processes

Expanded the -auditlog entries in the man pages of the server processes

The expanded auditlog explanation includes what information is recorded
in the auditlog.

LICENSE BSD

Reviewed-on: http://gerrit.openafs.org/213
Tested-by: Derrick Brashear <shadow@dementia.org>
Reviewed-by: Derrick Brashear <shadow@dementia.org>