[Piuparts-reports] Cron <piupartsm at pejacevic> rotate_master_logs

[Cron Daemon]

'sid-nodoc/master.log' -> 'sid-nodoc/master.20180623.log'
'stretch/master.log' -> 'stretch/master.20180623.log'
'jessie2Xstretch/master.log' -> 'jessie2Xstretch/master.20180623.log'
'squeeze2wheezy/master.log' -> 'squeeze2wheezy/master.20180623.log'