Fixed the duplicate slots view.
The script would not clear the screen upon recalculation also the list of duplicates would increase with every iteration because the variables weren't properly reset.
Patch by: Merio Ferraro, Lennard de Rijk
Reviewed by: to-be-reviewed
#!/usr/bin/env python
if __name__ == "__main__":
import sys
name = sys.argv[0]
args = ' '.join(sys.argv[1:])
print >> sys.stderr, "%s has been moved into django-admin.py" % name
print >> sys.stderr, 'Please run "django-admin.py makemessages %s" instead.'% args
print >> sys.stderr
sys.exit(1)