systemctl: limit some column widths to widest actually used

systemctl: limit some column widths to widest actually used

old
UNIT                      LOAD   ACTIVE       SUB                JOB
dev-hugepages.automount   loaded active       running                            Huge Page
dev-mqueue.automount      loaded active       waiting                            POSIX Mes
proc-sys...misc.automount loaded active       waiting                            Arbitrary
sys-kern...ebug.automount loaded active       running                            Debug Fil

new
UNIT                      LOAD   ACTIVE SUB       JOB
dev-hugepages.automount   loaded active running       Huge Pages File System Automount Poi
dev-mqueue.automount      loaded active waiting       POSIX Message Queue File System Auto
systemd-shutdownd.socket  loaded active listening     systemd Delayed Shutdown Socket