K 10 svn:author V 8 kientzle K 8 svn:date V 27 2007-02-08T07:25:53.000000Z K 7 svn:log V 212 Update -r handling: * Create file if it doesn't exist. * If archive is "empty", then append to it with pax restricted * If user specified a format, use that if it's compatible with the existing format. END