Fix possible segfault in swaybar

swaybar/main.c

@@ -135,6 +135,10 @@ void ipc_update_workspaces() {
 	int i;
 	for (i = 0; i < json_object_array_length(results); ++i) {
 		json_object *ws_json = json_object_array_get_idx(results, i);
+		if (!ws_json) {
+			// wat
+			continue;
+		}
 		json_object *num, *name, *visible, *focused, *out, *urgent;
 		json_object_object_get_ex(ws_json, "num", &num);
 		json_object_object_get_ex(ws_json, "name", &name);