Rolf Eike Beer 5b96fd5b81 use cmSystemTools::MoveFileIfDifferent() ...

This is better than doing CopyFileIfDifferent() followed by RemoveFile() in
two ways:

 - it is more efficient, as it avoids disk I/O for the data, even if the
   files here are usually small
 - it is atomic, so an abort during the copy will not leave a destination file
   with partial data behind

2019-09-09 10:34:08 +02:00

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