[issue39859] set_herror should not throw away constness of hstrerror

[Andy Lester]

New submission from Andy Lester <andy at petdance.com>:

set_herror builds a string by calling hstrerror but downcasts its return value to char *.  It should be const char *.

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components: Interpreter Core
messages: 363418
nosy: petdance
priority: normal
severity: normal
status: open
title: set_herror should not throw away constness of hstrerror

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue39859>
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