Extras repoclosure heads up

[Michael Schwendt]

Running Extras repoclosure on released packages _and_ unreleased packages
in the needsign queue may lead to confusing results:

In the report, it doesn't become obvious that it is an _unreleased_ package
in the needsign queue that would break dependencies _if_ it were released.
Instead, the report reads as if something in the public repository is broken
already.

On the contrary, if something _in_ the needsign queue contains broken deps,
the repository names in the report start with "fedora-extras-needsign-".

In either case, pushing the packages from the needsign queue would
break something unless fixed packages are built.