adopt some integration suggestions
sys/lib -> sys/libnh sys/lib/libnethackmain.c -> sys/libnh/libnhmain.c libnethack.a -> libnh.a
This commit is contained in:
sys/lib -> sys/libnh sys/lib/libnethackmain.c -> sys/libnh/libnhmain.c libnethack.a -> libnh.a