screen-3.9.4-3 with set 'password' option in .screenrc hang up on the
echo password >> .screenrc
<blank screen monitor and all hang up>
Don't do that, then. ;)
You're supposed to use 'password <crypted password string>',
or 'password none'.
Still, it is a bug.
... especially because its child process is segfaulting. Wheee.
Looking into it.
Fixed in screen-3.9.5, in Raw Hide.