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

[Cron Daemon]

'experimental/master.log' -> 'experimental/master.20180309.log'
sid2experimental/master.20180308.log: 57.1 KiB / 1045.9 KiB = 0.055
'jessie2Xstretch-rcmd/master.log' -> 'jessie2Xstretch-rcmd/master.20180309.log'
'jessie2bpo2stretch/master.log' -> 'jessie2bpo2stretch/master.20180309.log'