P4 Append - allows users to append comments to submitted
change descriptions.
Works by using "jobs" (required modified jobspec
included) to communicate the data to the system, then
a demon process (actually only tested on NT running
as a service) harvests the job data and using
"super" rights appends the text from the job
to the change and then deletes the job.
Only allows the original change author (and
members of a specific group) to append to
comments.