Fix anomaly

This somehow worked, but with upcoming first-3 bits as throwaways, it no longer
does. FIXIT

tree.c

@@ -51,7 +51,7 @@ struct tree *create_tree(FILE *file)
 
 	/* Create empty forest - whoah */
 	int ntrees = 0;
-	for (int i = 0; i < MY_BUF-1; i++) {
+	for (int i = 0; i < MY_BUF; i++) {
 		if (freq[i] > 0) {
 			forest[ntrees++] = insert_simple_tree(i, freq[i]);
 		}