fix missing comma

Author: oesteban

nipype/workflows/dmri/fsl/dti.py

@@ -190,7 +190,7 @@ def bedpostx_parallel(name='bedpostx_parallel',
         (inputnode, make_dyads, [('mask', 'mask')]),
         (inputnode, mrg_dyads,  [('mask', 'in_reference')]),
         (xfibres,   mrg_dyads,  [(('dyads', transpose), 'in_files')]),
-        (slice_dwi, mrg_dyads,  [('out_index', 'in_index')])
+        (slice_dwi, mrg_dyads,  [('out_index', 'in_index')]),
         (mrg_dyads, outputnode, [('merged_file', 'dyads')])
     ])