/usr/share/doc/texmf/latex/feynmf/template.tex is in feynmf 1.08-9.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/texmf/latex/feynmf/../../../feynmf/examples/template.tex
/usr/share/doc/texmf/latex/feynmf/../../../feynmf/examples/template.tex