'rc_configured' is still changed via sed's s///, wscons=yes is appended
via "echo >>".
* make target-routines (target_expand(), and whatnot) work if no root
disk was selected. With this, sysinst can now be used on a "normal"
system to adjust the system's timezone. Use the entry in the "Utilities"
menu for that.
Both changes were tested by a full i386 installation.