small fix in tree find

include/tr/tree_macros.h

@@ -116,12 +116,11 @@ typedef enum {rbBlack=1, rbRed=2} TR_rbColor;
 		while(1) {                                       \
 			(found) = (comp)((node)->data, (search));    \
 			if (0 != (found)) {                          \
-				if (! ((node)->left || (node)->right)) { \
-					break;                               \
-				}                                        \
 				if (0 < (found)) {                       \
+					if (! (node)->left) break;           \
 					(node) = (node)->left;               \
 				} else {                                 \
+					if (! (node)->right) break;          \
 					(node) = (node)->right;              \
 				}                                        \
 			} else {                                     \