fill-region: no NOSQUEEZE, one would expect the blanks to go

[Dan Jacobson]

Gentlemen, doing fill-region ought to wipe out the trailing whitespace in
$ cat -e o
1$
   $
2$
without having to resort to delete-trailing-whitespace.
Also doing a repeat-complex-command should by default bring up a
Redo: (fill-region)
instead of a
Redo: (fill-region 1 9 nil)
which we need to clean up each time we adjust the file, spoiling the
convenience of repeat-complex-command. Also as you can see, I didn't
specify NOSQUEEZE, so one would expect the blanks to go.
Emacs 21.3.1