CMake: man pages are not installed

[brad0]

With converting over to using CMake I noticed the man pages are not being installed..

-- Install configuration: "Release"
-- Installing: /home/brad/ports/pobj/libnfs-6.0.2/fake-aarch64/usr/local/lib/libnfs.so.3.0
-- Installing: /home/brad/ports/pobj/libnfs-6.0.2/fake-aarch64/usr/local/bin/nfs-cat
-- Installing: /home/brad/ports/pobj/libnfs-6.0.2/fake-aarch64/usr/local/bin/nfs-ls
-- Installing: /home/brad/ports/pobj/libnfs-6.0.2/fake-aarch64/usr/local/bin/nfs-cp
-- Installing: /home/brad/ports/pobj/libnfs-6.0.2/fake-aarch64/usr/local/bin/nfs-stat
-- Installing: /home/brad/ports/pobj/libnfs-6.0.2/fake-aarch64/usr/local/lib/cmake/libnfs/libnfs-config.cmake
-- Installing: /home/brad/ports/pobj/libnfs-6.0.2/fake-aarch64/usr/local/lib/cmake/libnfs/libnfs-config-release.cmake
-- Installing: /home/brad/ports/pobj/libnfs-6.0.2/fake-aarch64/usr/local/lib/cmake/libnfs/FindNFS.cmake
-- Installing: /home/brad/ports/pobj/libnfs-6.0.2/fake-aarch64/usr/local/lib/cmake/libnfs/libnfs-config-version.cmake
-- Installing: /home/brad/ports/pobj/libnfs-6.0.2/fake-aarch64/usr/local/lib/pkgconfig/libnfs.pc
-- Installing: /home/brad/ports/pobj/libnfs-6.0.2/fake-aarch64/usr/local/include/nfsc
-- Installing: /home/brad/ports/pobj/libnfs-6.0.2/fake-aarch64/usr/local/include/nfsc/libnfs-raw.h
-- Installing: /home/brad/ports/pobj/libnfs-6.0.2/fake-aarch64/usr/local/include/nfsc/libnfs-zdr.h
-- Installing: /home/brad/ports/pobj/libnfs-6.0.2/fake-aarch64/usr/local/include/nfsc/libnfs.h
-- Installing: /home/brad/ports/pobj/libnfs-6.0.2/fake-aarch64/usr/local/include/nfsc/libnfs-raw-mount.h
-- Installing: /home/brad/ports/pobj/libnfs-6.0.2/fake-aarch64/usr/local/include/nfsc/libnfs-raw-nfs.h
-- Installing: /home/brad/ports/pobj/libnfs-6.0.2/fake-aarch64/usr/local/include/nfsc/libnfs-raw-nfs4.h
-- Installing: /home/brad/ports/pobj/libnfs-6.0.2/fake-aarch64/usr/local/include/nfsc/libnfs-raw-nlm.h
-- Installing: /home/brad/ports/pobj/libnfs-6.0.2/fake-aarch64/usr/local/include/nfsc/libnfs-raw-nsm.h
-- Installing: /home/brad/ports/pobj/libnfs-6.0.2/fake-aarch64/usr/local/include/nfsc/libnfs-raw-portmap.h
-- Installing: /home/brad/ports/pobj/libnfs-6.0.2/fake-aarch64/usr/local/include/nfsc/libnfs-raw-rquota.h