CVS errors on "p5ee" repository. anyone know what this is?

Hi,

I am trying to commit some code to the CVS repository and I get a most
unexpected error.

rubicon:/usr/rubicon/devel/src/p5ee/App-Context/lib/App> cvs commit -m
"sync" Context.pm
Unmatched [ before HERE mark in regex m/^private[ << HERE perlweb// at
/cvs/public/CVSROOT/cvs_acls.pl line 124, <AVAIL> line 5.
cvs server: Pre-commit check failed
cvs [server aborted]: correct above errors first!
rubicon:/usr/rubicon/devel/src/p5ee/App-Context/lib/App>

Does anyone know what this is?

Stephen