Please review: Ticket #161 - Review and address latest Coverity issues

[Rich Megginson]

https://fedorahosted.org/389/ticket/161

ds patches - 
https://fedorahosted.org/389/attachment/ticket/161/0001-Ticket-161-Review...

admin server - 
https://fedorahosted.org/389/attachment/ticket/161/0001-Ticket-161-Review...

adminutil - 
https://fedorahosted.org/389/attachment/ticket/161/0001-Ticket-161-Review...