/usr/share/doc/texlive-doc/generic/mkjobtexmf/mkjobtexmf.html is in texlive-extra-utils 2009-10ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/texlive-doc/generic/mkjobtexmf/../../../texlive-extra-utils/generic/mkjobtexmf/mkjobtexmf.html