/usr/ is in librt-extension-commandbymail-perl 3.00-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/doc/
/usr/share/doc/librt-extension-commandbymail-perl/
/usr/share/doc/librt-extension-commandbymail-perl/README.gz
/usr/share/doc/librt-extension-commandbymail-perl/changelog.Debian.gz
/usr/share/doc/librt-extension-commandbymail-perl/copyright
/usr/share/man/
/usr/share/man/man3/
/usr/share/man/man3/RT::Extension::CommandByMail.3pm.gz
/usr/share/man/man3/RT::Interface::Email::Action::CommandByMail.3pm.gz
/usr/share/man/man3/RT::Interface::Email::Filter::TakeAction.3pm.gz
/usr/share/request-tracker4/
/usr/share/request-tracker4/plugins/
/usr/share/request-tracker4/plugins/RT-Extension-CommandByMail/
/usr/share/request-tracker4/plugins/RT-Extension-CommandByMail/etc/
/usr/share/request-tracker4/plugins/RT-Extension-CommandByMail/etc/handle_action_pass_currentuser.patch
/usr/share/request-tracker4/plugins/RT-Extension-CommandByMail/lib/
/usr/share/request-tracker4/plugins/RT-Extension-CommandByMail/lib/RT/
/usr/share/request-tracker4/plugins/RT-Extension-CommandByMail/lib/RT/Extension/
/usr/share/request-tracker4/plugins/RT-Extension-CommandByMail/lib/RT/Extension/CommandByMail/
/usr/share/request-tracker4/plugins/RT-Extension-CommandByMail/lib/RT/Extension/CommandByMail/Test.pm
/usr/share/request-tracker4/plugins/RT-Extension-CommandByMail/lib/RT/Extension/CommandByMail/Test.pm.in
/usr/share/request-tracker4/plugins/RT-Extension-CommandByMail/lib/RT/Extension/CommandByMail.pm
/usr/share/request-tracker4/plugins/RT-Extension-CommandByMail/lib/RT/Interface/
/usr/share/request-tracker4/plugins/RT-Extension-CommandByMail/lib/RT/Interface/Email/
/usr/share/request-tracker4/plugins/RT-Extension-CommandByMail/lib/RT/Interface/Email/Action/
/usr/share/request-tracker4/plugins/RT-Extension-CommandByMail/lib/RT/Interface/Email/Action/CommandByMail.pm
/usr/share/request-tracker4/plugins/RT-Extension-CommandByMail/lib/RT/Interface/Email/Filter/
/usr/share/request-tracker4/plugins/RT-Extension-CommandByMail/lib/RT/Interface/Email/Filter/TakeAction.pm