[Piuparts-reports] archive_old_logs

[piuparts master]

wheezy2jessie
`pass/libemail-send-perl_2.198-4.log' -> `archive/pass/libemail-send-perl_2.198-4.log'
`pass/libreturn-value-perl_1.666004-1.log' -> `archive/pass/libreturn-value-perl_1.666004-1.log'
`pass/ruby-sprockets_2.10.1-1.log' -> `archive/pass/ruby-sprockets_2.10.1-1.log'


Archived 3 old logfiles.