One small grab issue

grabs been working grat for me, only one small thing and I'm not sure
you can really correct this.  release candidate packages are showing up
as updates to newer official release packages...example:

Num S Package name       Version     Installed   Arch   Size   Server Desc
 --- - ------------------ ----------- ----------- ------ ------ ---------------
 1   U libvorbis          1.0rc3-1    1.0-1       i386   162K   [email protected]
 2   U libvorbis-devel    1.0rc3-1    1.0-1       i386   202K   [email protected]
 3   U vorbis-tools       1.0rc3-3    1.0-1       i386   76K    [email protected]


I'm not sure what you can really do except change the logic in the
version number parsing in the filenames to think that the X.YrcZ- string
means older than just X.Y-.


-jef