/usr/share/man/man8/a2dissite.8.gz is in apache2.2-common 2.2.22-13+deb7u6.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man8/a2ensite.8.gz
/usr/share/man/man8/a2ensite.8.gz