git-cvsserver: port to SHA-256
The code of git-cvsserver currently has several hard-coded 20 and 40
constants that are the length of SHA-1. When parsing the configuration
file, read the extensions.objectformat configuration setting as well as
CVS-related ones and adjust the hash sizes accordingly. Use these
computed values in all the places we match object IDs.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Acked-by: Eric Wong <e@80x24.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>