Wrong Default for spamspan_use_graphic?

Hi,

I could not turn off graphical "@" for viewing without Javascript.
This issue could successfully be fixed by changing the default value of spamspan_use_graphic in function _spamspan_callback() to zero:

-if (variable_get('spamspan_use_graphic', 1)) {
+if (variable_get('spamspan_use_graphic', 0)) {

The default value 0 for spamspan_use_graphic is consistent with other places in the source.

Could you please check whether this is a correct fix which should be applied to future versions?

Thanks,
Amin