/usr/share/redmine/ is in redmine-plugin-pretend 0.0.2+git20130821-3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/redmine/plugins/
/usr/share/redmine/plugins/redmine_pretend/
/usr/share/redmine/plugins/redmine_pretend/app/
/usr/share/redmine/plugins/redmine_pretend/app/views/
/usr/share/redmine/plugins/redmine_pretend/app/views/user/
/usr/share/redmine/plugins/redmine_pretend/app/views/user/_pretend_to.html.erb
/usr/share/redmine/plugins/redmine_pretend/app/views/user/_unpretend.html.erb
/usr/share/redmine/plugins/redmine_pretend/config/
/usr/share/redmine/plugins/redmine_pretend/config/locales/
/usr/share/redmine/plugins/redmine_pretend/config/locales/de.yml
/usr/share/redmine/plugins/redmine_pretend/config/locales/en.yml
/usr/share/redmine/plugins/redmine_pretend/config/locales/ru.yml
/usr/share/redmine/plugins/redmine_pretend/config/routes.rb
/usr/share/redmine/plugins/redmine_pretend/init.rb
/usr/share/redmine/plugins/redmine_pretend/lib/
/usr/share/redmine/plugins/redmine_pretend/lib/redmine_pretend/
/usr/share/redmine/plugins/redmine_pretend/lib/redmine_pretend/application_controller_patch.rb
/usr/share/redmine/plugins/redmine_pretend/lib/redmine_pretend/hooks.rb
/usr/share/redmine/plugins/redmine_pretend/test/
/usr/share/redmine/plugins/redmine_pretend/test/test_helper.rb