bpo-38345: Added end lines to pyclbr objects

[robertkearns]

Added the end lines to each object. Useful for users who wish to determine the scope of a class/function to determine dependencies.

https://bugs.python.org/issue38345

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[terryjreedy]

Some of the formatting changes are correct, some merely distracting, and some wrong.

An acceptable patch would need the tests revised to test the revised output.

[terryjreedy]

list.init optionally populates the empty list returned by list.new. This subclass init with no parameters does nothing and therefore should not be included.