/usr/share/man/man1/x86_64-linux-gnux32-gdc.1.gz is in gdc-x86-64-linux-gnux32 4:8-20180321-2ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man1/x86_64-linux-gnux32-gdc-8.1.gz
/usr/share/man/man1/x86_64-linux-gnux32-gdc-8.1.gz