/usr/share/ is in ruby-memcache-client 1.8.5-3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/man/
/usr/share/man/man1/
/usr/share/man/man1/memcached_top.1.gz
/usr/share/rubygems-integration/
/usr/share/rubygems-integration/1.9.1/
/usr/share/rubygems-integration/1.9.1/specifications/
/usr/share/rubygems-integration/1.9.1/specifications/memcache-client-1.8.5.gemspec
/usr/share/rubygems-integration/2.0/
/usr/share/rubygems-integration/2.0/specifications/
/usr/share/rubygems-integration/2.0/specifications/memcache-client-1.8.5.gemspec
/usr/share/doc/
/usr/share/doc/ruby-memcache-client/
/usr/share/doc/ruby-memcache-client/copyright
/usr/share/doc/ruby-memcache-client/changelog.Debian.gz
/usr/share/doc/ruby-memcache-client/README.rdoc
/usr/share/doc/ruby-memcache-client/FAQ.rdoc