Improve exception message in telemetry (#256)

* Improve exception message in telemtry

* ErrorKind must be serializable to put it in Exception.Data

* Update code

Co-authored-by: Erich(Renyong) Wang <eriwan@microsoft.com>

Author: dingmeng-xue

src/Authentication.Abstractions/Interfaces/IContainsAzPSErrorData.cs

@@ -12,6 +12,8 @@
 // limitations under the License.
 // ----------------------------------------------------------------------------------
 
+using System;
+
 namespace Microsoft.Azure.Commands.Common
 {
     /// <summary>
@@ -44,6 +46,7 @@ public interface IContainsAzPSErrorData
     /// <summary>
     /// Represent Error Kind
     /// </summary>
+    [Serializable]
     public class ErrorKind
     {
         public string Value { get; private set; }

src/Common/MetricHelper.cs

@@ -566,7 +566,7 @@ public override string ToString()
             "AzureQoSEvent: CommandName - {0}; IsSuccess - {1}; Duration - {2}", CommandName, IsSuccess, Duration);
         if (Exception != null)
         {
-            ret = $"{ret}; Exception - {Exception};";
+            ret = $"{ret}; Exception - {Exception.Message};";
         }
         return ret;
     }