Class Errata

Overrides: spacewalk.common.RPC_Base.RPC_Base.__init__

Clients v1- Get errata for a package given "n-v-r" format
IN:  pkg:   "n-v-r" (old client call)
            or [n,v,r]
     osRel: OS release
RET: a hash by errata that applies to this package
     (ie, newer packages are available). We also limit the scope
     for a particular osRel.

Clients v2+ - Get errata for a package given [n,v,r,e,a,...] format

Sing-along: You say erratum(sing), I say errata(pl)! :) IN: pkg: [n,v,r,e,s,a,ch,...] RET: a hash by errata that applies to this package

Return a list of RhnErrata tuples of (id, advisory_name)

IN: system_id - id of the system requesting this info (must be
    subscribed to the channel that contains the erratas)
    errata_ids - a list of RhnErrata ids

Only the erratas that belong to channels that the client system
is subscribed to are returned. If no erratas match this
criterion, then an empty list is returned.