/usr/lib/rpm/fileattrs/appdata.attr is in rpm 4.12.0.2+dfsg1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | %__appdata_provides %{_rpmconfigdir}/appdata.prov
%__appdata_path ^%{_datadir}/appdata/.*\\.appdata\\.xml$
|