[PATCH 0 of 3] keyword: bugfix commands where expansion was not filewise

[Jesse Glick]

By the way, did you consider using encode/decode hooks instead of a 
separate command to expand keywords? This would be more like what CVS 
does (for better or for worse). E.g.

[decode]
** = expand:
[encode]
** = unexpand:

where you would want to automatically skip over binary files (those 
which contain NUL).

'hg cat' and 'hg di' work on the unexpanded versions, which is probably 
what you want; the keywords would just get expanded in the working copy.

An irritation is that Hg does not permit encode/decode hooks to be 
composed, so for Windows usage you would to add 'expandwithcrlf' and 
'unexpandwithcrlf' variants.