Ticket #273 - ruv tombstone searches don't work after reindex entryrdn
    
    https://fedorahosted.org/389/ticket/273
    Resolves: Ticket #273
    Bug Description: ruv tombstone searches don't work after reindex entryrdn
    Reviewed by: nhosoi (Thanks!)
    Branch: master
    Fix Description: Upgrade script was not working correctly:
    1) replace both rdn-format/ and rdn-format-1/ with rdn-format-2/
    2) use s (replace) instead of y (transliterate)
    3) use correct version string when updating main DBVERSION file
    4) open main DBVERSION file in write mode
    5) do not put extra newline in DBVERSION file
    Platforms tested: RHEL6 x86_64
    Flag Day: no
    Doc impact: no