Fix CVS error: cvs server: cannot open /root/.cvsignore : Permission denied

IF:
> server_args = --allow-root=/usr/local/repository pserver
> cvs server: cannot open /root/.cvsignore : Permission denied
> cvs [server aborted]: can't chdir (/root): Permission denied

THEN:

server_args = -f --allow-root=/usr/local/repository pserver

will fix it.