Fixing incorrect print statement.

dlib/svm/rr_trainer.h

@@ -399,7 +399,7 @@ namespace dlib
                 if (use_regression_loss)
                     cout << "LOO Mean Squared Error:   " << best_looe << endl;
                 else
-                    cout << "LOO Classification Accuracy: " << best_looe << endl;
+                    cout << "LOO Classification Error: " << best_looe << endl;
             }
 
             // convert w into a proper decision function