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

[Cron Daemon]

'testing2sid/master.log' -> 'testing2sid/master.20170924.log'
'oldstable222sid/master.log' -> 'oldstable222sid/master.20170924.log'
jessie2stretch/master.20170923.log: 84.6 KiB / 1044.9 KiB = 0.081
jessie2Xstretch/master.20170923.log: 41.5 KiB / 1042.7 KiB = 0.040