add missing perl dependency (File::Slurp) for moco-ldap-checker
add missing perl dependency (File::Slurp) for moco-ldap-checker

mozilla-bteam/bmo-nubis,mozilla-bteam/bmo-nubis,gozer/bugzilla.mozilla.org,tinnightcap/bugzilla.mozilla.org,gozer/bugzilla.mozilla.org,gozer/bugzilla.mozilla.org,tinnightcap/bugzilla.mozilla.org,mozilla-bteam/bmo-nubis,klibby/bugzilla.mozilla.org,klibby/bugzilla.mozilla.org,tinnightcap/bugzilla.mozilla.org