Valid Syntax for commit-access-control.cfg

[Steven Hansen]

Hi,

I'm trying to find some documentation describing "valid" syntax for the 
commit-access-control.cfg
file.  I've been bitten in the past by using something like:

[SVN - config modification permissions]
match   = ^SVN
access  = read-write
users   = first.lastname

Having a '.' in the username causes errors.

Also, does anyone know why does this cause errors?  If possible I'd like 
to include usernames that
include the '.'

Thanks,
Steven