[trivial] Sanitize Logger.getLevel before use
[trivial] Sanitize Logger.getLevel before use

Problem

Logger.getLevel might be null.

Solution

Wrap it in an Option.

RB_ID=641268

travisbrown/twitter-server,travisbrown/twitter-server,twitter/twitter-server,takei-shg/twitter-server,travisbrown/twitter-server,BuoyantIO/twitter-server,travisbrown/twitter-server,takei-shg/twitter-server,twitter/twitter-server,takei-shg/twitter-server,BuoyantIO/twitter-server,BuoyantIO/twitter-server,takei-shg/twitter-server,twitter/twitter-server,BuoyantIO/twitter-server