Description of problem:
When installing the latest Rawhide build of ibus-chewing, yum complains that it cannot set the group to "root-", and that it is using "root" instead.  That happens to be the right thing to do, but the cause is a broken %defattr in the spec file, which is missing a comma:

%defattr(-,root,root-)

That should be:

%defattr(-,root,root,-)

or better yet, just remove it entirely, as RPM no longer needs the standard %defattr declaration (as of RPM 4.4.0).

Version-Release number of selected component (if applicable):
ibus-chewing-1.4.5-1.fc21.x86_64

How reproducible:
Always

Steps to Reproduce:
1. Install or update to the latest ibus-chewing package.
2.
3.

Actual results:
Yum warns about the group named "root-".

Expected results:
No warnings.

Additional info: