Also sort the expanded list of packages so that any failures will
be consistent instead of depending on the randomness of a set().
And add better logging when things fail.
The core issue is that repodata may have packages that match globs, but
they cannot actually be installed (eg. sigrok-firmware). This can cause
*some* of the globbed packages to be installed before hitting the
failure package.
With this change it will log the expanded list of packages if a glob is
used. It will skip any packages that fail to install when using
--optional with the glob, and continue to install the rest.
Related: rhbz#1440417
1c6b083260