Log Message:
py-pylint: updated to 1.8.3

Pylint 1.8.3:
* Fix false positive inconsistent-return-statements message when a
  function is defined under an if statement.
* Exempt __doc__ from triggering a redefined-builtin
  __doc__ can be used to specify a docstring for a module without
  passing it as a first-statement string.
* Don't crash on invalid strings when checking for logging-format-interpolation
* Fix false positive inconsistent-return-statements message by
  avoiding useless exception inference if the exception is not handled.
* Fix false positive undefined-variable for lambda argument in
  class definitions
* Fix false-positive undefined-variable for generated
  comprehension variables in function default arguments