Avoid failing when embedding with a Window id of 0
I'd like to let st run with its own window when trying to embed it to a window with id 0 instead of exiting with an error.
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						 Roberto E. Vargas Caballero
						Roberto E. Vargas Caballero
					
				
			
			
				
	
			
			
			
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							| @@ -3136,8 +3136,8 @@ xinit(void) { | |||||||
| 		| ButtonMotionMask | ButtonPressMask | ButtonReleaseMask; | 		| ButtonMotionMask | ButtonPressMask | ButtonReleaseMask; | ||||||
| 	xw.attrs.colormap = xw.cmap; | 	xw.attrs.colormap = xw.cmap; | ||||||
|  |  | ||||||
| 	parent = opt_embed ? strtol(opt_embed, NULL, 0) : \ | 	if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0)))) | ||||||
| 			XRootWindow(xw.dpy, xw.scr); | 		parent = XRootWindow(xw.dpy, xw.scr); | ||||||
| 	xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t, | 	xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t, | ||||||
| 			xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput, | 			xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput, | ||||||
| 			xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity | 			xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity | ||||||
|   | |||||||
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