/usr/share/man/man1/emacs24.1.gz is in emacs24 24.3+1-2ubuntu1.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man1/emacs.emacs24.1.gz
/usr/share/man/man1/emacs.emacs24.1.gz