Version 0.06:
   - Fix statistics display - was always showing 0 weak keys found

Version 0.05:
   - Protect from a usage error
   - check for the proper ssh host filename
   - go back to perl 5.10.0 versions of File::Temp etc

Version 0.04:
   - REALLY fix the -r bug.  Ho hum.

Version 0.03:
   - the '-r' option was removing the whole line, rather than
     commenting it out.  whoops.
   - bundle File/Spec.pm etc from perl 5.8.4