[issue30399] Get rid of trailing comma in the repr() of BaseException

[Terry J. Reedy]

Terry J. Reedy added the comment:

I think the trailing comma is slightly worse than redundant, as someone who has forgotten the trailing comma rule for calls can mistakenly read it as making the arg a tuple.  So +1 on removing it.

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nosy: +terry.reedy

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue30399>
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