Update test hmac() callsites to pass list of string. It was working before because each character in the input was getting passed to update(). 	Change on 2014/09/04 by johncox <johncox@google.com> ------------- Created by MOE: http://code.google.com/p/moe-java MOE_MIGRATED_REVID=74815827
Update test hmac() callsites to pass list of string.
It was working before because each character in the input was getting passed to update().
	Change on 2014/09/04 by johncox <johncox@google.com>
-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=74815827

andela-angene/coursebuilder-core,andela-angene/coursebuilder-core,andela-angene/coursebuilder-core,andela-angene/coursebuilder-core