request #7718 Fix LDAP injections

Change-Id: I7deb2097e4f99b840865150e4739c751f1b0018d
Merge commit 'refs/changes/13/3413/5' of ssh://gerrit.tuleap.net:29418/tuleap into stable

* ssh://gerrit.tuleap.net:29418/tuleap:
  request #7718 Fix LDAP injections
This is Tuleap 7.8.99.28

Change-Id: I1a7995d2b547047ce906e429695e597c5b44122f