drw_text: don't segfault when called with 0 width
this patch just rejects *any* 0 width draws, which is surely an error by the caller. this also guards against cases where the width is too small for the ellipsis to fit, so ellipsis_w will remain 0. reported by Bakkeby <bakkeby@gmail.com>
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							| @ -267,7 +267,7 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp | ||||
| 	enum { nomatches_len = 64 }; | ||||
| 	static struct { long codepoint[nomatches_len]; unsigned int idx; } nomatches; | ||||
|  | ||||
| 	if (!drw || (render && !drw->scheme) || !text || !drw->fonts) | ||||
| 	if (!drw || (render && (!drw->scheme || !w)) || !text || !drw->fonts) | ||||
| 		return 0; | ||||
|  | ||||
| 	if (!render) { | ||||
|  | ||||
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