STY: adds newline to end of file

Author: miykael

nipype/workflows/fmri/fsl/tests/test_preprocess.py

@@ -22,4 +22,4 @@ def test_create_featreg_preproc():
 
     # test methods
     assert wf.get_node('extractref')
-    assert wf._get_dot()
+    assert wf._get_dot()