/usr/share/man/man3/GLOBUS_GASS_TRANSFER_ERROR_BAD_PORT.3.gz is in libglobus-gass-transfer-doc 8.10-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man3/globus_gass_transfer.h.3.gz
/usr/share/man/man3/globus_gass_transfer.h.3.gz