x11.xlib: add GenericEvent constant
x11.xlib: add GenericEvent constant

ceninan/factor,erg/factor,kingcons/factor,erg/factor,erg/factor,erg/factor,kingcons/factor,mcandre/factor,kingcons/factor,cataska/factor,mcandre/factor,erg/factor,mcandre/factor,cataska/factor,mcandre/factor,kingcons/factor,cataska/factor,mcandre/factor,ceninan/factor,erg/factor,cataska/factor,erg/factor,ceninan/factor,mcandre/factor,mcandre/factor,ceninan/factor