[Fedora-packaging] Configuration files in /usr

[Jason L Tibbitts III]

Any opinions on %config files in /usr?  This seems to violate all
sorts of common sense surrounding shared or read only /usr, but does
not seem to be mentioned in the guidelines.

An example package is hwdata:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=225893

Patrice mentions in that bug that FHS covers us here, but the
guideline only asks that deviations from FHS be rationalized.

 - J<