Add comment for uninitialized variable. (#39)

Author: jjceresa

Diff for: libinstpatch/IpatchConverter.c

@@ -216,6 +216,10 @@ ipatch_convert_object_to_type_multi(GObject *object, GType type, GError **err)
 GList *
 ipatch_convert_object_to_type_multi_list(GObject *object, GType type, GError **err)
 {
+    /* Note: empty is intentionally not initialized. It allows to fix some build on ARM and PPC.
+       It is save to use, because empty is not accessed in ipatch_convert_object_to_type_multi_set_vlist
+       when the second last argument is NULL.
+    */
     va_list empty;
     return (ipatch_convert_object_to_type_multi_set_vlist(object, type, err, NULL, empty));
 }
@@ -295,6 +299,7 @@ ipatch_convert_object_to_type_multi_set_vlist(GObject *object, GType type, GErro
         return NULL;
     }
 
+    /* assign properties (if any) */
     if(first_property_name)
     {
         g_object_set_valist((GObject *)conv, first_property_name, args);