specfile: remove Distribution/Packager tag; use rpm macros

There exist a number of rpm specfile tags that make it possible to
mislead users of the produced RPM package, because its presence
overrides anything that has been specified in ~/.rpmmacros (or the
configuration files of the build system used). Such is especially
annoying when Packager:/Vendor: is put in specfiles, because it is
then almost impossible to get the name/email of the person who
_really_ did the packaging (assuming s/he set it in their
.rpmmacros).

Such similarly applies to the Distribution: tag, which is why I
suggest its removal and let the build systems provide the proper
string instead.

Also make use of rpm macros in one place.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
1 file changed