[packagekit] hif backend: keepcache

[Kevin Kofler]

Richard Hughes wrote:
> I've added this in 9a44b8d9ff45cd96cd8373e188ba32c844d69c0e -- you
> need to add KeepCache=true to PackageKit.conf

Great, thanks! (Saves me the work of figuring out how to add this. :-) )

        Kevin Kofler