Add Exception property to log messages

src/Discord.Net/DiscordClient.Voice.cs

@@ -40,7 +40,7 @@ namespace Discord
 				config.VoiceClientId = unchecked(++_nextVoiceClientId);
 				return new DiscordWSClient(config, server.Id);
 			});
-			client.LogMessage += (s, e) => RaiseOnLog(e.Severity, e.Source, $"(#{client.Config.VoiceClientId}) {e.Message}");
+			client.LogMessage += (s, e) => RaiseOnLog(e.Severity, e.Source, $"(#{client.Config.VoiceClientId}) {e.Message}", e.Exception);
 			await client.Connect(_gateway, _token).ConfigureAwait(false);
 			return client;
 		}

src/Discord.Net/DiscordWSClient.Events.cs

@@ -47,13 +47,15 @@ namespace Discord
 		public LogMessageSeverity Severity { get; }
 		public LogMessageSource Source { get; }
 		public string Message { get; }
+		public Exception Exception { get; }
 
-		internal LogMessageEventArgs(LogMessageSeverity severity, LogMessageSource source, string msg) 
+		internal LogMessageEventArgs(LogMessageSeverity severity, LogMessageSource source, string msg, Exception exception)
 		{ 
 			Severity = severity; 
 			Source = source; 
-			Message = msg; 
-		}
+			Message = msg;
+			Exception = exception;
+        }
 	}
 
 	public sealed class VoicePacketEventArgs
@@ -88,10 +90,10 @@ namespace Discord
 				RaiseEvent(nameof(Disconnected), () => Disconnected(this, e));
 		}
 		public event EventHandler<LogMessageEventArgs> LogMessage;
-		internal void RaiseOnLog(LogMessageSeverity severity, LogMessageSource source, string message)
+		internal void RaiseOnLog(LogMessageSeverity severity, LogMessageSource source, string message, Exception exception = null)
 		{
 			if (LogMessage != null)
-				RaiseEvent(nameof(LogMessage), () => LogMessage(this, new LogMessageEventArgs(severity, source, message)));
+				RaiseEvent(nameof(LogMessage), () => LogMessage(this, new LogMessageEventArgs(severity, source, message, exception)));
 		}
 
 		public event EventHandler VoiceConnected;

src/Discord.Net/DiscordWSClient.cs

@@ -82,7 +82,7 @@ namespace Discord
 
 			if (!_config.VoiceOnly)
 			{
-				socket.LogMessage += (s, e) => RaiseOnLog(e.Severity, LogMessageSource.DataWebSocket, e.Message);
+				socket.LogMessage += (s, e) => RaiseOnLog(e.Severity, LogMessageSource.DataWebSocket, e.Message, e.Exception);
 				if (_config.LogLevel >= LogMessageSeverity.Info)
 				{
 					socket.Connected += (s, e) => RaiseOnLog(LogMessageSeverity.Info, LogMessageSource.DataWebSocket, "Connected");
@@ -96,7 +96,7 @@ namespace Discord
 		internal virtual VoiceWebSocket CreateVoiceSocket()
 		{
 			var socket = new VoiceWebSocket(this);
-			socket.LogMessage += (s, e) => RaiseOnLog(e.Severity, LogMessageSource.VoiceWebSocket, e.Message);
+			socket.LogMessage += (s, e) => RaiseOnLog(e.Severity, LogMessageSource.VoiceWebSocket, e.Message, e.Exception);
 			socket.Connected += (s, e) => RaiseVoiceConnected();
 			socket.Disconnected += async (s, e) =>
 			{
@@ -288,7 +288,7 @@ namespace Discord
 			{
 				var ex2 = ex.GetBaseException();
 				RaiseOnLog(LogMessageSeverity.Error, LogMessageSource.Client,
-					$"{name}'s handler raised {ex2.GetType().Name}: ${ex2.Message}");
+					$"{name}'s handler raised {ex2.GetType().Name}: ${ex2.Message}", ex);
 			}
 		}