Tweak SelectFiles docstring up reflect changes

Author: mwaskom

nipype/interfaces/io.py

@@ -572,17 +572,17 @@ class SelectFiles(IOBase):
  This interface uses the {}-based string formatting syntax to plug
  values (possibly known only at workflow execution time) into string
  templates and collect files from persistant storage. These templates
- can also be combined with glob wildcards. The names used in the
- formatting template should correspond to the input fields given
- when you instantiate the interface, and the outputs are formed by the
- keys in the `templates` dictionary.
+ can also be combined with glob wildcards. The field names in the
+ formatting template (i.e. the terms in braces) will become inputs
+ fields on the interface, and the keys in the templates dictionary
+ will form the output fields.
 
  Examples
  --------
 
  >>> from nipype import SelectFiles, Node
  >>> templates={"T1": "{subject_id}/struct/T1.nii",
- ... "epi": "{subject_id}/func/f[0,1].nii"}
+ ... "epi": "{subject_id}/func/f[0, 1].nii"}
  >>> dg = Node(SelectFiles(templates), "selectfiles")
  >>> dg.inputs.subject_id = "subj1"
  >>> dg.outputs.get()