Copyright statement update touches all files even those that apparently are unchanged.

[Jari Häkkinen]

The reason for this is that copyright update actually recreates all files. A suggestion for resolution is:

A check if there is a real change in a file after the update should be done. If no true svn diff happened the time should be reset to time before running update. Remember, there are many times to consider when resolving this issue. Or do it smarter.

[Peter Johansson]

In verbose mode, it should be stated which files are updated.