/usr/share/perl5/Regexp/Common/URI/ is in libregexp-common-perl 2011121001-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/Regexp/Common/URI/RFC1035.pm
/usr/share/perl5/Regexp/Common/URI/RFC1738.pm
/usr/share/perl5/Regexp/Common/URI/RFC1808.pm
/usr/share/perl5/Regexp/Common/URI/RFC2384.pm
/usr/share/perl5/Regexp/Common/URI/RFC2396.pm
/usr/share/perl5/Regexp/Common/URI/RFC2806.pm
/usr/share/perl5/Regexp/Common/URI/fax.pm
/usr/share/perl5/Regexp/Common/URI/file.pm
/usr/share/perl5/Regexp/Common/URI/ftp.pm
/usr/share/perl5/Regexp/Common/URI/gopher.pm
/usr/share/perl5/Regexp/Common/URI/http.pm
/usr/share/perl5/Regexp/Common/URI/news.pm
/usr/share/perl5/Regexp/Common/URI/pop.pm
/usr/share/perl5/Regexp/Common/URI/prospero.pm
/usr/share/perl5/Regexp/Common/URI/tel.pm
/usr/share/perl5/Regexp/Common/URI/telnet.pm
/usr/share/perl5/Regexp/Common/URI/tv.pm
/usr/share/perl5/Regexp/Common/URI/wais.pm