Fixing indentation

(cherry picked from commit e27595b329dad82fad606a8dcb6feb42442779c0)

Source commit: de8f10e15728e5a691fd5e70e29a2e28ef8bdc8c

source/filezilla/AsyncSslSocketLayer.cpp

@@ -339,7 +339,7 @@ void CAsyncSslSocketLayer::OnSend(int nErrorCode)
     if (m_nShutDown == 1 && ShutDownComplete())
     {
       //Send shutdown notification if all pending data has been sent
-            // FileZilla3 calls ShutDownNext() here
+      // FileZilla3 calls ShutDownNext() here
       DoLayerCallback(LAYERCALLBACK_LAYERSPECIFIC, SSL_INFO, SSL_INFO_SHUTDOWNCOMPLETE);
       m_nShutDown++;
     }