bad requests due to missing parameters logged at warn level, not error.

lib/validate.js

@@ -65,8 +65,9 @@ module.exports = function (params) {
       });
       next();
     } catch(e) {
-      logger.error(e.toString());
-      return httputils.badRequest(resp, "missing '" + e + "' argument");
+      var msg = "missing '" + e + "' argument";
+      logger.warn("bad request recieved: " + msg);
+      return httputils.badRequest(resp, msg);
     }
   };
 };

lib/wsapi/cert_key.js

@@ -20,7 +20,7 @@ exports.process = function(req, res) {
     keysigner.path = '/wsapi/cert_key';
     forward(keysigner, req, res, function(err) {
       if (err) {
-        logger.error("error forwarding request:", err);
+        logger.error("error forwarding request: " + err);
       }
     });
   });