Updates the window manager list for wdm
update_wdm_wmlist [ window managers ]
update_wdm_wmlist uses update-alternatives to see which window-managers are available and updates the DisplayManager*wdmWm resource in the wdm configuration file (/etc/X11/wdm/wdm-config)
You can pass a list of window managers as arguments.
wdm(1x)
The script and this manpage were written by Marcelo Magallon
and later rewritten to use update-alternatives by Wichert Akkerman
wdm was written by Gene Czarcinski