Extract upstream KWSys using the following shell commands.

$ git archive --prefix=upstream-kwsys/ 88c8cc7f | tar x
$ git shortlog --no-merges --abbrev=8 --format='%h %s' 29ffaf43..88c8cc7f
Ben Boeckel (11):
      9bf03363 Avoid if() quoted auto-dereference
      771e0f22 DynamicLoader: use strings for arguments
      86e20d68 Directory: remove extra define
      6cc24510 SystemTools: use strings in environment functions
      bab5b1f2 SystemTools: add string overload for ReplaceString
      f3fb01cf SystemTools: use strings for path-related APIs
      0dfbe56d SystemTools: use strings for making C identifiers
      4690fc8d SystemTools: use strings in registry function
      1b762a41 SystemTools: search for characters
      4a060347 SystemInformation: use %ls for WCHAR* format specifiers
      d31f7b12 SystemTools: remove unused variable

Brad King (1):
      88c8cc7f Fix configure_file call to use COPYONLY, not COPY_ONLY

Clinton Stimpson (1):
      5bf91dda SystemTools:  Use extended length path for copying files.

Change-Id: I16e8e55dea1c171c04f9c7d04ae3c575531097c3