Question for removing trailing whitespaces (not vertical tab) from source

[Joe Buck]

On Tue, Mar 13, 2007 at 10:31:34AM -0600, Eric Weddington wrote:
> At the risk of extending this out further, can someone explain to me why 
> using TABs is preferrable, as they are interpreted, while spaces are
> unambiguous?

If anyone wants to explain this to Eric, please do so off-list.
Let's not tie up this list with a long off-topic discussion.