[PATCH] Don't lie that "binary file has changed"

[tailgunner at smtp.ru]

On Thu, 15 Feb 2007 09:19:12 -0200
"Alexis S. L. Carvalho" <alexis at cecm.usp.br> wrote:

> Thus spake tailgunner at smtp.ru:
> > Without -a option to "hg diff", mdiff.unidiff reported that "Binary
> > file foo has changed" without even trying to compare things. Now it
> > computes MD5 of old and new files, compares them and makes the conclusion.
> 
> Do you have an example of when unidiff is called for two identical
> (binary) files?
> 

The case where binary file is renamed

> 
> Comparing a and b directly would probably be even faster :)
> 

Sure, but it would take twice as much memory