BUGFIX: do collect the last row in the source table with pt-archiver

[hjweddie]

1. When I archive source table to dest table using pt-archiver, I find that the last row is always missing, which means "last row is lost in the archive"
2. I think that we could keep the last row in the dest table/file when using pt-archiver

[it-percona-cla]

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[svetasmirnova]

This is not a bug but documented behavior. Check https://docs.percona.com/percona-toolkit/pt-archiver.html#cmdoption-pt-archiver--[no]safe-auto-increment and https://jira.percona.com/browse/PT-1349 for details.