fix: not log error in multi line

package.json

@@ -64,6 +64,7 @@
     "delegates": "^1.0.0",
     "koa-compose": "^4.1.0",
     "only": "^0.0.2",
+    "serialize-error": "^3.0.0",
     "shortid": "^2.2.12"
   }
 }

src/index.js

@@ -5,6 +5,7 @@ import util from "util";
 import compose from "koa-compose";
 import Debugger from "debug";
 import only from "only";
+import serializeError from "serialize-error";
 
 import Session from "./session";
 import Context from "./context";
@@ -172,10 +173,7 @@ export default class Application extends Emitter {
 
     if (this.silent) return;
 
-    const msg = err.stack || err.toString();
-    console.error();
-    console.error(msg.replace(/^/gm, "  "));
-    console.error();
+    console.error(serializeError(err));
   }
 
   /**

yarn.lock

@@ -6136,6 +6136,10 @@ [email protected]:
   version "5.5.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.5.0.tgz#dc4bbc7a6ca9d916dee5d43516f0092b58f7b8ab"
 
+serialize-error@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/serialize-error/-/serialize-error-3.0.0.tgz#80100282b09be33c611536f50033481cb9cc87cf"
+
 set-blocking@^2.0.0, set-blocking@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"