Fix to protect users from selves.

[Guy L. Albertelli]

To all that answered:

I also abhor the kludge that I wrote.

I also recognize that the test would catch possible *valid* filenames.

I will attempt to find the keys that cause the rename to occur.

However, the point of the patch was to:
  1. Provide the developers with a way not to have their Windows system (real or fake) be renamed during development. I got tired of
renaming the directories back to what they should have been.

  2. Protect the end users from destroying their Windows system during testing/playing. The last thing we should want is the
impression that Wine is dangerous because of unexpected consequences due to simple appearing actions.
"comp.emulators.ms-windows.wine" still gets complaints from user that have done this very action.

Guy