/usr/share/man/man1/mipsel-linux-gnu-g++-5.1.gz is in g++-5-mipsel-linux-gnu 5.5.0-12ubuntu1cross1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man1/mipsel-linux-gnu-gcc-5.1.gz
/usr/share/man/man1/mipsel-linux-gnu-gcc-5.1.gz