request #5914: Lot of warning when running make api_test

Change-Id: I8c2663bc500f1c58a4fafeec47eee4e492a87fc4
Merge commit 'refs/changes/90/1690/2' of ssh://gerrit.tuleap.net:29418/tuleap into stable

* ssh://gerrit.tuleap.net:29418/tuleap:
  request #5914: Lot of warning when running make api_test

Change-Id: I3d0e21418609037f39e4eb113871b6f12f3c8edc
This is Tuleap 6.9.99.39

Change-Id: I18b3596b581da933e9185664a32a0766a4881ae0