Fix a typo in setup.py

Author: vasilvv

setup.py

@@ -5,4 +5,4 @@
       author='Debathena Project',
       author_email='[email protected]',
       scripts=['delete', 'undelete', 'lsdel', 'expunge'],
-      py_modules['libdelete.py'])
+      py_modules=['libdelete.py'])