i386 and amd64 snapshots - kernel SHA256 mismatch

[JC Choisy]

Hi,

The kernel in latest i386 and amd64 snapshots has a sha256 checksum 
that doesn't match what's listed in the SHA256 file. bsd.rd complains 
about this when trying to upgrade.

This is with the snapshots of Oct. 14th

Thanks,
-jc