Issue 24600: function(**dict) does not accept comma after dict (inside parenthese)

Consider following:

Python 3.4.0 (default, Jun 19 2015, 14:20:21) 
[GCC 4.8.2] on linux

>>> def f(**kw): pass

>>> f(a=1 , )
>>> # ok

>>> f(**{'a': 1} )
>>> # ok

>>> # but :

>>> f(**{'a': 1} , )
SyntaxError: invalid syntax
>>> 

shouldn't the last form be also allowed as is the first one ??

if it is: Could I personnaly handle this fix ? I'd be very proud to bring (even such a low impact problem) my own stone to Python :)

Kind regards.