/usr/share/perl5/RPC/ is in librpc-xml-perl 0.78-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/RPC/XML/
/usr/share/perl5/RPC/XML.pm
/usr/share/perl5/RPC/XML/Client.pm
/usr/share/perl5/RPC/XML/Parser/
/usr/share/perl5/RPC/XML/Parser.pm
/usr/share/perl5/RPC/XML/Parser/XMLLibXML.pm
/usr/share/perl5/RPC/XML/Parser/XMLParser.pm
/usr/share/perl5/RPC/XML/ParserFactory.pm
/usr/share/perl5/RPC/XML/Procedure.pm
/usr/share/perl5/RPC/XML/Server.pm
/usr/share/perl5/RPC/XML/identity.xpl
/usr/share/perl5/RPC/XML/introspection.xpl
/usr/share/perl5/RPC/XML/listMethods.xpl
/usr/share/perl5/RPC/XML/methodHelp.xpl
/usr/share/perl5/RPC/XML/methodSignature.xpl
/usr/share/perl5/RPC/XML/multicall.xpl
/usr/share/perl5/RPC/XML/status.xpl