shrink express-bunyan-logger output for production

lib/crowi/index.js

@@ -416,13 +416,15 @@ Crowi.prototype.buildServer = function() {
   if (env == 'production') {
     const expressBunyanLogger = require('express-bunyan-logger');
     const logger = require('@alias/logger')('express');
-    app.use(expressBunyanLogger({ logger }));
+    app.use(expressBunyanLogger({
+      logger,
+      excludes: ['*'],
+    }));
   }
   // use morgan
   else {
     const morgan = require('morgan');
     app.use(morgan('dev'));
-
   }
 
   return Promise.resolve(app);