This set contains one ZSK rollover.  The ZSK is unpublished before its
successor is published.  Tool output should resemble:

Checking KSK events for zone example.com, algorithm 7:
OK

Checking ZSK events for zone example.com, algorithm 7:
ERROR: After 2012-06-Oct (21:13:45):
    Delete: example.com/007/25967 (ZSK)
No ZSK's are published
