trailing IFS non-whitespace "because many sh-derived
shells have this behavious", and me checking for ksh88
on Solaris confirms it.
So, for the sake of compatibility to AT&T ksh, change
it and document the change.
but the one fixed by a diff by jaredy@openbsd (which intro-
duces other problems though):
Log message:
Change the behavior of IFS word-splitting: split words
when the current character is IFS space and the last
character was a word character or it was non-white IFS
space and the current character is non-white IFS space.
This deviates from the previous behavior because the
latter splits words when the last character is any IFS
space and the current is non-white IFS, resulting in
more fields most of the time.
This new behavior follows what the man page describes;
i.e., that a field is delimited by one or more IFS
whitespace characters followed by zero or one non-white
IFS characters.
