[tz] Troll rule parsing issue

[Paul Eggert]

David Braverman wrote:
> What is the rule regarding continuation lines on zone definitions?

It's given in the zic man page, which says "Fields are separated from 
one another by one or more white space characters."  Tabs and spaces are 
both white space characters, and it's immaterial which is used.  The 
other white space characters (other than newline itself) are '\f', '\r', 
and '\v'.