Update nipype/interfaces/robex/preprocess.py

Co-authored-by: Chris Markiewicz <effigies@gmail.com>

Author: mfmachado

nipype/interfaces/robex/preprocess.py

@@ -54,7 +54,8 @@ class RobexSegment(CommandLine):
     Examples
     --------
     >>> path_mr = 'structural.nii'
-    >>> robex = RobexSegment(in_file=path_mr)
+    >>> robex.cmdline
+    'runROBEX.sh structural.nii structural_brain.nii structural_mask.nii'
     >>> robex.run() # doctest: +SKIP
 
     """