Correct default

Author: wphicks

python/cuml/cuml/ensemble/randomforest_common.pyx

@@ -73,7 +73,7 @@ class BaseRandomForestModel(UniversalBase):
     classes_ = CumlArrayDescriptor()
 
     @device_interop_preparation
-    def __init__(self, *, split_criterion, n_streams=4, n_estimators=100,
+    def __init__(self, *, split_criterion=None, n_streams=4, n_estimators=100,
                  max_depth=16, handle=None, max_features='sqrt', n_bins=128,
                  bootstrap=True,
                  verbose=False, min_samples_leaf=1, min_samples_split=2,

python/cuml/cuml/ensemble/randomforestclassifier.pyx

@@ -276,7 +276,7 @@ class RandomForestClassifier(BaseRandomForestModel,
     }
 
     @device_interop_preparation
-    def __init__(self, *, split_criterion=0, handle=None, verbose=False,
+    def __init__(self, *, split_criterion=None, handle=None, verbose=False,
                  output_type=None,
                  **kwargs):