[CentOS] Script to sync with repo

Wed Jul 20 19:32:40 UTC 2011
Devin Reade <gdr at gno.org>

Also try an invocation of rsync with the checksum flag; that'll 
catch any files that might be corrupted.  It does increase server
load and rsync run time, though, so you should probably disable it
again afterwards.

Devin