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

[Cron Daemon]

'experimental/master.log' -> 'experimental/master.20180705.log'
sid-strict/master.20180704.log: 96.5 KiB / 1058.7 KiB = 0.091
jessie2bpo2stretch/master.20180704.log: 68.3 KiB / 1038.7 KiB = 0.066
jessie-security/master.20180704.log: 53.7 KiB / 1042.1 KiB = 0.051