added style change

Co-Authored-By: Chris Markiewicz <[email protected]>

Author: ostanley

nipype/interfaces/afni/utils.py

@@ -621,7 +621,7 @@ def _format_arg(self, name, spec, value):
         if name == 'in_file':
             # Concatenate a series of filenames, with optional opkeys
             return ' '.join('%s -%s' % (mfile, opkey) if opkey else mfile
-                for mfile, opkey in value)
+                           for mfile, opkey in value)
         return super(CatMatvec, self)._format_arg(name, spec, value)