Trivial: Give the middleware init function an explicit name.
Middleware stack printout before:
NODE> app.stack
[ { route: '', handle: [Function: query] },
{ route: '', handle: [Function] },
{ route: '', handle: [Function: favicon] },
{ route: '', handle: [Function: logger] },
Middleware stack printout after:
NODE> app.stack
[ { route: '', handle: [Function: query] },
{ route: '', handle: [Function: expressInit] },
{ route: '', handle: [Function: favicon] },
{ route: '', handle: [Function: logger] },