speeding up cg-log -u

Hi folks,

I notice that cg-log takes a -u parameter, that lets you restrict the log
entries that are displayed, to match the argument you give it. So

cg-log -uKH

shows all the logs where Greg KH played a part.

Currently cg-log handles this by grabbing all the log data from git, and
then grepping through it.

Would it be faster to handle this on the git side, telling git to only
retrieve the logs that match the specified query? If feasible, this might
speed up various web interfaces into git repositories.

Be well,
Zack

-- 
Zack Brown