Editing Git Log

[Piet Delaney <piet.delaney@tensilica.com>]

I think I recall reading that a feature of git was the prevention of the 
git commits
from being changed. I noticed today that a couple of us have checked in 
files
without our customary [XTENSA] architecture prefixed to the 1st line of our
Commit Messages.

I couldn't find a way to do this, other than our reverting back to a 
earlier repository
and recommitting (each?) change with the slightly changed Commit Message;
not an attractive investment of our time.

Any suggestions?

-piet