gutils: Add (nullable) annotation to g_get_prgname()
It can return NULL if no program name has been set yet (i.e. g_set_prgname() has not been called from somewhere).
Signed-off-by: Philip Withnall withnall@endlessm.com
It can return NULL if no program name has been set yet (i.e. g_set_prgname() has not been called from somewhere).
Signed-off-by: Philip Withnall withnall@endlessm.com