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

[Cron Daemon]

experimental/master.20180728.log: 52.1 KiB / 1055.7 KiB = 0.049
'jessie2bpo2stretch/master.log' -> 'jessie2bpo2stretch/master.20180729.log'
jessie/master.20180728.log: 98.0 KiB / 1036.6 KiB = 0.095
'wheezy-security/master.log' -> 'wheezy-security/master.20180729.log'