This is a workaround for presumably alterator-pkg's
misbehaviour given a pkglist with a line ending with
a space character; my particular case grew from @E2K
suffix resulting in "%name@e2k %name@e2kv4" which,
in its turn, became "%name " in e2k-arch build.

Installer complained about being

  unable to install in selected configuration

with /tmp/install2.log "clarifying" the problem to be
%name  being unavailable (while %name package was there
in both RPMS.main and metadata)... not obvious at all!

So while downstream should be hardened either, let's do
what we can do here.