`#(define page-breaking foo)' vs. `page-breaking = #foo'

[Mark Polesky]

Any reason why the 'page-breaking \paper variable tends to
be declared with a scheme definition?  I typically see it
like this in the docs:

  #(define page-breaking ly:minimal-breaking)

I prefer to use this form though:

  page-breaking = #ly:minimal-breaking

In my commit b0a027f, I changed the standard setting for
this in paper-defaults-init.ly, and nothing broke as far as
I can tell.  Any opposition to changing the other
scheme-style declarations in the docs?

Thanks
- Mark