Please review: [389 Project] #437: variable dn should not be used in ldbm_back_delete

[Noriko Hosoi]

https://fedorahosted.org/389/ticket/437

https://fedorahosted.org/389/attachment/ticket/437/0001-Trac-Ticket-437-v...


Fix description: When SLAPI_DELETE_TARGET_DN was replaced with
SLAPI_DELETE_TARGET_SDN, removing obsolete variable dn was
incomplete. Actually, the variable dn is still referred in
some error messages. This patch sets the value from Slapi_DN
to the dn variable.