Fix test, outfields

@@ -633,9 +633,9 @@ def test_bids_infields_outfields(tmpdir):
 for outfield in outfields:
 assert(outfield in bg._outputs().traits())
 
-# now try without defining outfields, we should get anat and func for free
+# now try without defining outfields
 bg = nio.BIDSDataGrabber()
-for outfield in ['anat', 'func']:
+for outfield in ['T1w', 'bold']:
 assert outfield in bg._outputs().traits()