[issue30523] unittest: add --list-tests option to only display the list of test names, don't run tests

[STINNER Victor]

STINNER Victor added the comment:


New changeset 24c2c20873dc800c99d1dabf26419b40cadfe627 by Victor Stinner in branch '2.7':
bpo-30540, bpo-30523: Add --matchfile and --list-cases options to regrtest (#2249)
https://github.com/python/cpython/commit/24c2c20873dc800c99d1dabf26419b40cadfe627


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