GitHub auth: log token requests

lib/github-auth.js

@@ -232,6 +232,7 @@ function githubRequest(request, url, query, cb) {
       } else {
         var remaining = +res.headers['x-ratelimit-remaining'];
         var reset = +res.headers['x-ratelimit-reset'];
+        console.log('GitHub auth: token', githubToken, 'at rate limit', remaining);
         setReqRemaining(githubToken, remaining, reset);
       }
     }