[docs] TypeError in smtpd module with string arguments (issue 26209)

[stephane at wirtel.be]

http://bugs.python.org/review/26209/diff/18091/Doc/library/smtpd.rst
File Doc/library/smtpd.rst (right):

http://bugs.python.org/review/26209/diff/18091/Doc/library/smtpd.rst#newcode36
Doc/library/smtpd.rst:36: the parameters localaddr and remoteaddr should
a tuple in form ``("host",portnumber)``,
should be a tuple

http://bugs.python.org/review/26209/