size statistics: fix units (bytes vs kbytes) and add titles
size statistics: fix units (bytes vs kbytes) and add titles

Debian/debsources,Debian/debsources,devoxel/debsources,vivekanand1101/debsources,matthieucan/debsources,zacchiro/debsources,zacchiro/debsources,sophiejjj/debsources,matthieucan/debsources,sophiejjj/debsources,devoxel/debsources,zacchiro/debsources,zacchiro/debsources,clemux/debsources,matthieucan/debsources,vivekanand1101/debsources,zacchiro/debsources,oorestisime/debsources,matthieucan/debsources,vivekanand1101/debsources,vivekanand1101/debsources,clemux/debsources,nonas/debian-qa,clemux/debsources,devoxel/debsources,oorestisime/debsources,Debian/debsources,Debian/debsources,clemux/debsources,sophiejjj/debsources,Debian/debsources,matthieucan/debsources,sophiejjj/debsources,devoxel/debsources,clemux/debsources,nonas/debian-qa,sophiejjj/debsources,nonas/debian-qa,vivekanand1101/debsources,oorestisime/debsources,oorestisime/debsources,nonas/debian-qa,devoxel/debsources,oorestisime/debsources