Add missing input_cache_max_size to the config.
Add missing input_cache_max_size to the config.

Graylog2/graylog2-puppet,treydock/graylog2-puppet,Jimdo/graylog2-puppet,Graylog2/graylog2-puppet,Graylog2/graylog2-puppet,treydock/graylog2-puppet,Jimdo/graylog2-puppet,treydock/graylog2-puppet,Jimdo/graylog2-puppet