KWSys 2021-04-26 (642ddfcc)

Code extracted from:

    https://gitlab.kitware.com/utils/kwsys.git

at commit 642ddfccfea808632f8d4b3be03971903e3d359d (master).

Upstream Shortlog
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Rolf Eike Beer (1):
      7b0f5c20 SystemInformation: improve CPU counting on non-standard architectures