Shopify/active_merchant — pull request #531 by aprofeit (2012-12-15 00:18:42+00:00)
Title: always void entire amount with orbital

Problem: Oribital's void method's signature doesn't conform with void methods in AM

Solution: remove money from the void method's signature, pass nil to Orbital to always void entire authorization

Review @jduff @ntalbott

Cc @Soleone