Changed: Display an better text for status code 307, see #279

--HG--
branch : develop

code/ryzom/tools/client/ryzom_installer/src/downloader.cpp

@@ -323,6 +323,13 @@ void CDownloader::onHeadFinished()
 		}
 	}
 
+	// error when download is not yet ready
+	else if (status == 307)
+	{
+		if (m_listener) m_listener->operationFail(tr("File is not available, please retry later (status code: %1)").arg(status));
+		return;
+	}
+
 	// other status
 	else
 	{