[gst-debugger] gst-debugger: quit main loop on exit

[Marcin Kolny <mkolny src gnome org>]

commit df0939d68f3325b947b862f35e7372a3474033c2
Author: Marcin Kolny <marcin kolny gmail com>
Date:   Fri Oct 20 12:36:22 2017 +0100

    gst-debugger: quit main loop on exit

 src/gst-debugger/main_window.cpp |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/gst-debugger/main_window.cpp b/src/gst-debugger/main_window.cpp
index 2c64aaf..6637c87 100644
--- a/src/gst-debugger/main_window.cpp
+++ b/src/gst-debugger/main_window.cpp
@@ -75,7 +75,7 @@ MainWindow::MainWindow(BaseObjectType* cobject, const Glib::RefPtr<Gtk::Builder>
        });
 
        signal_delete_event().connect([this](GdkEventAny*){
-               // TODO graph_module->free_graph(); - do we need this?
+        graph_module->free_graph(nullptr, nullptr); // TODO we only have to quit main loop
                return false;
        });
 }