rz_server: shorten log format
rz_server: shorten log format

ozFri/rhizi,Rhizi/rhizi,cben/rhizi,cben/rhizi,shlomif/rhizi,tlevine/rhizi,Rhizi/rhizi,Rhizi/rhizi,shlomif/rhizi,cben/rhizi,tlevine/rhizi,tlevine/rhizi,shlomif/rhizi,yuvadm/rhizi,yuvadm/rhizi,ozFri/rhizi,tlevine/rhizi,ozFri/rhizi,Rhizi/rhizi,cben/rhizi,ozFri/rhizi,yuvadm/rhizi,shlomif/rhizi,yuvadm/rhizi