bogus tty entry

[Adam Myrow]

The only way to get rid of that is to zero out /var/wtmp and log out of
all vertial terminals.  You could also reboot, but why bother when you can
fix it without doing that?  The magic command is "cat /dev/null
>/var/wtmp."  Catting /dev/null over any file will make it empty but leave
its ownership and permissions intact, so this is the best way to empty out
a file that the system relies on.  Good luck.