libsmi error date-year-2digits

Error text: date specification `__' contains a two-digit year representing `__'

Reference: RFC 2578 section 2

ExtUTCTime ::= OCTET STRING(SIZE(11 | 13))
    -- format is YYMMDDHHMMZ or YYYYMMDDHHMMZ
    --   where: YY   - last two digits of year (only years
    --                 between 1900-1999) 

2 digit years represent years in the 20th century.  You MUST use the
4-digit form for years after 1999.