[O] trunc fill modes?

[Peter Davis]

This is probably more an emacs question than org-mode, but ...
On my MacBook Pro at work, running Aquamacs 3.0a, in Org mode the mode 
line shows

Org Trunc Fill

However, on my MacBook at home, it shows

Org Trunc Spc

I like the way the first one works. How can I make the second one have 
the same modes by default as the first?

Thanks!

-pd

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Peter Davis
The Tech Curmudgeon
www.techcurmudgeon.com