KWSys 2017-02-14 (5c6f7836)

Code extracted from:

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

at commit 5c6f78360d93742bace501bef0c45664d317972a (master).

Upstream Shortlog
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Brad King (1):
      a673a722 SystemInformation: Fix -Wconversion warning

Nicolás Bértolo (1):
      9c4230b7 SystemInformation: Fix counts of logical and physical cores