regedit: adding confirmation message before importing from file

[Dan Kegel]

Hi Nowres,
did you run the regedit tests,
   cd programs/regedit/tests
   make test
after that change?  Here it fails with
  regedit.c:384: Test failed: regedit not available, skipping regedit tests
( log at http://buildbot.kegel.com/builders/runtests/builds/2 )
You might need to fully implement the /S switch for regedit and use it
from the tests before you can add the confirmation dialog to regedit.
- Dan