Use alias from service definition rather than hard coded name

[MarioBlazek]

Current service definition

tags:
    - { name: netgen_information_collection.action }

and getName() method must be implemented

public function getName()
    {
        return 'email';
    }

Better solution is to add alias to service definition:

tags:
    - { name: netgen_information_collection.action, alias: email }