docs/140918: update 8.0 handbook about serial port /dev node name change

[Joe Barbish]

>Number:         140918
>Category:       docs
>Synopsis:       update  8.0 handbook about serial port /dev node name change
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-doc
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          doc-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Nov 27 01:30:03 UTC 2009
>Closed-Date:
>Last-Modified:
>Originator:     Joe Barbish
>Release:        8.0 release
>Organization:
n/a
>Environment:
>Description:
The 8.0 handbook has to be updated to reflect new serial port names.
http://www.freebsd.org/doc/en/books/handbook/install-post.html shows the sysinstall menu for configuring the mouse. Mouse dev name has changed in 8.0.

>From the 8.0 release notes is the following
http://www.freebsd.org/releases/8.0R/relnotes-detailed.html

[amd64, i386] The uart(4) is now the default driver for serial port devices in favor of the sio(4) driver. Note that the device nodes have been renamed with /dev/cuauN and /dev/ttyuN. 
>How-To-Repeat:
Just read the 8.0 handbook about config mouse and you will see 7.2 /dev node names shown
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: