Changes quotes in doctest.

Author: tsalo

nipype/interfaces/afni/preprocess.py

@@ -3051,8 +3051,8 @@ class Notes(CommandLine):
     >>> notes.inputs.add = "This note is added."
     >>> notes.inputs.add_history = "This note is added to history."
     >>> notes.cmdline #doctest: +IGNORE_UNICODE
-    '3dNotes -a "This note is added." -h "This note is added to history." functional.HEAD'
     >>> res = notes.run() # doctest: +SKIP
+    "3dNotes -a 'This note is added.' -h 'This note is added to history.' functional.HEAD"
     """
 
     _cmd = '3dNotes'