fix compile warnings

dunst.c

@@ -1971,7 +1971,7 @@ int main(int argc, char *argv[])
       run(NULL);
       g_main_loop_run(mainloop);
 
-      g_bus_unown_name(owner_id);
+      dbus_tear_down(owner_id);
 
         return 0;
 }

dunst.h

@@ -38,7 +38,7 @@ typedef struct _screen_info {
 
 typedef struct _actions {
         char **actions;
-        int count;
+        gsize count;
 } Actions;
 
 typedef struct _notification {

dunst_dbus.c

@@ -325,3 +325,8 @@ int initdbus(void)
 
         return owner_id;
 }
+
+void dbus_tear_down(int owner_id)
+{
+      g_bus_unown_name(owner_id);
+}

dunst_dbus.h

@@ -6,6 +6,7 @@
 #include <dbus/dbus.h>
 
 int initdbus(void);
+void dbus_tear_down(int id);
 /* void dbus_poll(int timeout); */
 void notificationClosed(notification * n, int reason);