I intend to package it for Fedora but I have no license file. I have contacted the developer awhile ago and I'm still waiting for an answer. It's based on a Larry Wall script under Perl license so there should not be any issue.
Also I don't know if it's compatible with the guidelines but I renamed the package: the original binary is named rename but was conflicting with GNU rename so I patched the source to add a "p" prefix. I remember reading in the guidelines that prefixing is an option in case of conflict but I'm not sure it is the approved way.
Best regards,
Robert-André