edbus: Use snprintf to be sure

Are dbus function calls with more than 1000 arguments possible?
If so -> prevent buffer overflow

Signed-off-by: Daniel Willmann <d.willmann@samsung.com>

src/lib/edbus/edbus_message_to_eina_value.c

@@ -282,7 +282,7 @@ _message_iter_struct_to_eina_value(EDBus_Message_Iter *iter)
         Eina_Value *v;
 
         m = calloc(1, sizeof(Eina_Value_Struct_Member));
-        sprintf(name, ARG, z);
+        snprintf(name, 7, ARG, z);
         m->name = strdup(name);
         offset = _type_offset(type, offset);
         m->offset = offset;