Fixed another reference in XML doc.

Renci.SshClient/Renci.SshNet/Common/ChannelOpenFailedEventArgs.cs

@@ -1,7 +1,7 @@
 namespace Renci.SshNet.Common
 {
     /// <summary>
-    /// Provides data for <see cref="Renci.SshNet.Channels.Channel.OpenFailed"/> event.
+    /// Provides data for <see cref="Renci.SshNet.Channels.ClientChannel.OpenFailed"/> event.
     /// </summary>
     internal class ChannelOpenFailedEventArgs : ChannelEventArgs
     {