request #6641: Fix X-PAGINATION-SIZE for /trackers/:id/artifacts

Change-Id: Ie7a2db9bde61fcd9a32b6f18d7f15964cb3f3efb
Merge commit 'refs/changes/58/2258/2' of ssh://gerrit.tuleap.net:29418/tuleap into stable

* ssh://gerrit.tuleap.net:29418/tuleap:
  request #6641: Fix X-PAGINATION-SIZE for /trackers/:id/artifacts
This is Tuleap 6.12.99.22

Change-Id: Id290b422c5a639f2a39c5d07307ce3c42799c956