Warn user if an ID range with incorrect size was created
IPA 3.0 introduced range ID objects in replicated space which specify
a range of IDs assigned via DNA plugin. ipa-ldap-updater generates the
default ID range which should correspond with IDs assigned to IPA
users.
However, since correct range size is not known, we should at least
warn that a range with invalid size was created so that user can
amend it.
https://fedorahosted.org/freeipa/ticket/2892