Re: [PATCH for "next"] pretty-formats: add 'format:<string>'

Johannes Schindelin [off-list ref] writes:

With this patch,

$ git show -s \
	--pretty=format:'  Ze komit %h woss%n  dunn buy ze great %an'

shows something like

  Ze komit 04c5c88 woss
  dunn buy ze great Junio C Hamano

Does it say "This commit is by a fool whose name is blah"?

The supported placeholders are:

	'%H': commit hash
...
	'%b': body

Hmmm.  Would we want to make them somehow interoperable with
git-for-each-ref format atoms?

Also, it _might_ be worthwhile to do something like "%+4b"
which means "indent each line of this field with 4 spaces", for
a multi-line field like "%b".

	'%Cred': switch color to red
	'%Cgreen': switch color to green
	'%Cblue': switch color to blue
	'%Creset': reset color

Hmmm.  I strongly suspect that we would want to reuse code to
grok colors and attributes in color.c.

	>   --format 'committer %c\nauthor %a\n'
	>   
	> this catches all combinations, and is easier for scripting.

I do not have strong preference between "\n" and "%n".

	So, I overcame my laziness after 91 days...

Thanks.