fix: missing parentheses

Author: mgxd

nipype/workflows/dmri/fsl/artifacts.py

@@ -275,11 +275,11 @@ def gen_index(in_file):
                     ('topup.out_fieldcoef', 'in_topup_fieldcoef'),
                     ('topup.out_movpar', 'in_topup_movpar')]),
         (bet_dwi0, ecc, [('mask_file', 'in_mask')]),
-        (inputnode, gen_idx, ['in_file', 'in_file']),
+        (inputnode, gen_idx, [('in_file', 'in_file')]),
         (inputnode, ecc, [('in_file', 'in_file'),
                           ('in_bval', 'in_bval'),
                           ('in_bvec', 'in_bvec')]),
-        (gen_idx, ecc, ['out_file', 'in_index']),
+        (gen_idx, ecc, [('out_file', 'in_index')]),
         (inputnode, rot_bvec, [('in_bvec', 'in_bvec')]),
         (ecc, rot_bvec, [('out_parameter', 'eddy_params')]),
         (ecc, avg_b0_1, [('out_corrected', 'in_dwi')]),