In most cases, if a package is shipped without a default
configuration file, this file isn't listed at all in the RPM
(not even as a %ghost).
Include optional configuration files in the RPMS as %config
%ghost. For example, /etc/ld.so.conf should be included in
glibc; /etc/modules.conf should be listed in modutils;
/etc/rpmrc should be listed in rpm.
Change you for your suggestion. It has been noted and will be
considered for future releases of RPM.