/usr/share/man/man1/gfortran.1.gz is in gfortran 4:4.6.3-1ubuntu5.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man1/gfortran-4.6.1.gz
/usr/share/man/man1/gfortran-4.6.1.gz