Fix merge error

The change 4a39158368f6184c8d56e1d65866ba99f83297e0 merged a part of
the diff for prepend to append. This patch moves the wrongly merged line.

Task-number: QTBUG-40284
Change-Id: I32d1b2f8e730aca38964d3675d3dec94512e0026
Reviewed-by: Julien Brianceau <jbriance@cisco.com>
Reviewed-by: Michael Bruning <michael.bruning@digia.com>
Fix build of leveldb with old Qt versions

Applies a missing patch to leveldb that fixed building with older Qt
versions.

Change-Id: Ie894127d265140cbb8524e271e5779c92ab8e393
Reviewed-by: Michael Bruning <michael.bruning@digia.com>