jacky_K on "[Plugin: List category posts] Delete the entries with a particular tag"

Thanks for the plugin.
Code works fine
[catlist id="12" tags= book,other]
and
[catlist id="12" tags= book+other]

But how can I exclude records with a specific label?
Code [catlist id="12" tags= book-other] does not work

http://wordpress.org/extend/plugins/list-category-posts/