backlog clean-up

[German Blanco]

The project has a large backlogs of JIRAs, but many of them do not reflect
issues in the current versions.
Wouldn't it make sense to spend a little time closing obsolete JIRAs?
E.g. this one:
https://issues.apache.org/jira/browse/ZOOKEEPER-1392
Seems to be "Not a problem".
May I just go through the list and start resolving those that are obvious?
Or is there a better procedure to do this?