Documentation update for timezone information in `date'

[Stephen Eglen]

% date --v
date (GNU sh-utils) 2.0

I've just spent a little while working out how to change the time zone
information on my Redhat 6.1 linux machine.  I read through
sh-utils.info and couldn't work out how to set the time zone .
Eventually I found the separate program `tzselect' which informed me
about (and helped me set) the TZ environment variable.  This variable
is not mentioned in sh-utils.info (v 2.0).  Since `date' seems to use
this variable, should this variable be mentioned (presumably in the
node "Time zone item")?

Also, being picky, the info node mostly uses "time zone", but twice
"timezone" is used - is this intended?

Cheers, Stephen Eglen.