7.58 What happened to /usr/local? What's this /usr/contrib directory?

Things have been moved around some -- probably for the better: 

/opt 
    optional HP software packages like the ANSI C & C++ compilers and debuggers. 
/opt/hppd 
    pre-compiled HP public-domain sofware downloaded from the anonymous server 
    at http://hpux.cae.wisc.edu/ or http://hpux.cs.utah.edu/ 
/usr/contrib 
    Unsupported, 3rd-party or public-domain software compiled and maintained 
    by the local operations group on their software depot. For example: 
    nn, gzip, Gnu tools, perl5 
/usr/local 
    workstation-unique software packages that the user has installed himself 
    or are local to a specific machine. This directory is world writable. 

(Alek Comments: world-writeable ... ack!   ;-)

(Thanx to Brad Bass <bass@convex.hp.com>)