[MRG + 1] Printing the total time in cross_validation (scikit-learn#7640)

* print score+fit time instead of just score time when doing cross_validation

* reducing line size

* More clearer log message

Author: srivatsan-ramesh

sklearn/model_selection/_validation.py

@@ -265,7 +265,8 @@ def _fit_and_score(estimator, X, y, scorer, train, test, verbose,
     if verbose > 2:
         msg += ", score=%f" % test_score
     if verbose > 1:
-        end_msg = "%s -%s" % (msg, logger.short_format_time(score_time))
+        total_time = score_time + fit_time
+        end_msg = "%s, total=%s" % (msg, logger.short_format_time(total_time))
         print("[CV] %s %s" % ((64 - len(end_msg)) * '.', end_msg))
 
     ret = [train_score, test_score] if return_train_score else [test_score]