[issue #44] Fix the default bunyan CLI output of a res.body that is an object instead of a string.

See issue#38 for the same with `req.body`.

CHANGES.md

@@ -2,7 +2,8 @@
 
 ## bunyan 0.14.1 (not yet released)
 
-(nothing yet)
+- [issue #44] Fix the default `bunyan` CLI output of a `res.body` that is an
+  object instead of a string. See issue#38 for the same with `req.body`.
 
 
 ## bunyan 0.14.0

bin/bunyan

@@ -702,7 +702,8 @@ function emitRecord(rec, line, opts, stylize) {
       delete res.headers;
       delete res.statusCode;
       if (res.body) {
-        s += '\n\n' + res.body
+        s += '\n\n' + (typeof(res.body) === 'object'
+          ? JSON.stringify(res.body, null, 2) : res.body);
         delete res.body;
       }
       if (res.trailer) {