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

[Mike Stump]

On Mar 13, 2007, at 8:01 AM, Ian Lance Taylor wrote:
> Andrew Haley <aph@redhat.com> writes:
> I think removing trailing whitespace would be OK

Generally speaking, yes, but be aware, there are cases where it  
should not be removed.  To most, the spots that should not be changed  
are obvious, once you see them.  If you just blindly did it with an  
emacs automatic rule, in time, it would do the wrong thing.