Add sign-off line

Signed-off-by: jkyeung <gallium.arsenide@gmail.com>

Author: jkyeung

src/itoolkit/itoolkit.py

@@ -391,6 +391,7 @@ def addParm(self, obj, iopt={}): # noqa N802
 
         Args:
           obj   (obj): iData object or iDs object.
+          iopt (dict): options to pass to iParm constructor
 
         Returns:
           (void)