Software::License::Artistic_1_0 - The Artistic License
The Artistic License 1.0 has a sometimes-omitted "aggregation clause" which reads:
8. The name of the Copyright Holder may not be used to endorse or promote products derived from this software without specific prior written permission.
By default, this clause will be included. To disable it, include the following pair when instantiating the license:
aggregation_clause => 0
This method returns whether the aggregation clause is allowed on this instance. By default this method returns true on instances and dies on the class.