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

[Cron Daemon]

'buster/master.log' -> 'buster/master.20180610.log'
'jessie2bpo/master.log' -> 'jessie2bpo/master.20180610.log'
jessie-pu/master.20180609.log: 42.2 KiB / 1033.4 KiB = 0.041
'squeeze2bpo2wheezy/master.log' -> 'squeeze2bpo2wheezy/master.20180610.log'