revert debug code; clean up

cdiff.py

         # Setup line width and number width
         if width <= 0:
             width = 80
-
         (start, offset) = self._hunks[-1]._old_addr
         max1 = start + offset - 1
         (start, offset) = self._hunks[-1]._new_addr
         max2 = start + offset - 1
         num_width = max(len(str(max1)), len(str(max2)))
+
+        # Setup lineno and line format
         left_num_fmt = colorize('%%(left_num)%ds' % num_width, 'yellow')
         right_num_fmt = colorize('%%(right_num)%ds' % num_width, 'yellow')
         line_fmt = left_num_fmt + ' %(left)s ' + COLORS['reset'] + \

tests/test_cdiff.py

         self._change_file('read_diff')
 
         os.chdir(self._ws)
-        #ret = cdiff.main()
-        ret = 0
+        ret = cdiff.main()
         os.chdir(self._cwd)
         self.assertEqual(ret, 0)