Warning that a promise was created in a handler but not returned from it

[nstuyvesant]

Using lusca 1.4.1 and node 7.7.4.

Got this warning message: Warning: a promise was created in a handler at Users/nates/Documents/Development/shy/node_modules/lusca/index.js:48:21 but was not returned from it, see http://goo.gl/rRqMUw

If you add a return null; after this line of code, the warning goes away.