References: https://bugzilla.libsdl.org/show_bug.cgi?id=3854

Fix an assertion, triggered by libdbus receiving garbage
from a varargs function in SDL.
---
 src/core/linux/SDL_ibus.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: SDL2-2.0.6/src/core/linux/SDL_ibus.c
===================================================================
--- SDL2-2.0.6.orig/src/core/linux/SDL_ibus.c
+++ SDL2-2.0.6/src/core/linux/SDL_ibus.c
@@ -479,7 +479,7 @@ IBus_SimpleMessage(const char *method)
     SDL_DBusContext *dbus = SDL_DBus_GetContext();
     
     if (IBus_CheckConnection(dbus)) {
-        SDL_DBus_CallVoidMethodOnConnection(ibus_conn, IBUS_SERVICE, input_ctx_path, IBUS_INPUT_INTERFACE, method);
+        SDL_DBus_CallVoidMethodOnConnection(ibus_conn, IBUS_SERVICE, input_ctx_path, IBUS_INPUT_INTERFACE, method, DBUS_TYPE_INVALID);
     }
 }