Fix request #7541: TV3 to TV5 : bad path in attachments path migration

Change-Id: I164bd60caca1f0d21c110a87d148efe1a06df653
Merge commit 'refs/changes/47/3147/2' of ssh://gerrit.tuleap.net:29418/tuleap into HEAD

* ssh://gerrit.tuleap.net:29418/tuleap:
  Fix request #7541: TV3 to TV5 : bad path in attachments path migration

Change-Id: I91254745b32a94ebe47e12eba62614952f6e5413
This is Tuleap 7.6.99.14

Change-Id: Ib2905450b6a248dfcf8c083dffd5669d7d6ca578