/usr/share/xsessions/openbsd-cwm.desktop is in cwm 5.6-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 | [Desktop Entry]
Name=openbsd-cwm
Comment=Lightweight window manager for X11
Exec=openbsd-cwm
Terminal=False
TryExec=openbsd-cwm
Type=Application
Keywords=wm;windowmanager;window;manager;cwm;
|