Sysinstall - why two different programs in 5.3 RELEASE?

[Jay O'Brien]

When I installed 5.3 RELEASE, the installation program, when 
it was finished installing, said "Congratulations... to re-enter 
utility after the system is up, type /usr/sbin/sysinstall."

However, the FreeBSD Handbook says to type /stand/sysinstall:
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/install-final-warning.html
The Handbook makes no mention of /usr/sbin/sysinstall.

I find the following files are present:

 403488 Nov 4 17:27 /usr/sbin/sysinstall
2046148 Nov 4 20:22 /stand/sysinstall

When I invoke these programs, the screens that come up are 
identical, and the functions seem to be the same. 

Why are there two versions of sysinstall, one five times the 
size of the other, and what are the differences between them 
other than file size and time?

Jay O'Brien
Rio Linda, California, USA