[issue26307] no PGO for built-in modules with `make profile-opt`

[Alecsandru Patrascu]

Changes by Alecsandru Patrascu <alecsandru.patrascu at intel.com>:


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nosy: +alecsandru.patrascu

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue26307>
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