STY: Further simplification

Co-authored-by: Chris Markiewicz <[email protected]>

Author: DimitriPapadopoulos

nipype/interfaces/cmtk/convert.py

@@ -196,7 +196,7 @@ def _run_interface(self, runtime):
                 cda = cf.CData(name=data_name, src=data, fileformat="NumPy")
                 if 'lengths' in data_name:
                     cda.dtype = "FinalFiberLengthArray"
-                if string.find(data_name, 'endpoints') != -1:
+                if 'endpoints' in data_name:
                     cda.dtype = "FiberEndpoints"
                 if string.find(data_name, 'labels') != -1:
                     cda.dtype = "FinalFiberLabels"