/usr/share/doc/libmessaging-menu-dev/changelog.Debian.gz is in libmessaging-menu-dev 13.10.1+15.10.20150505-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libmessaging-menu-dev/../gir1.2-messagingmenu-1.0/changelog.Debian.gz