fancyopts.py has no copyright/license header

[Matt Mackall]

On Wed, 2009-03-11 at 16:46 +0100, Peter Arrenbrecht wrote:
> On Wed, Mar 11, 2009 at 3:33 PM, Peter Arrenbrecht
> <peter.arrenbrecht at gmail.com> wrote:
> > Matt, the file was added by you in the original release. Should it
> > have one? Which?
> 
> Neither does match.py, hgext/convert/common.py.

They're effectively covered by COPYING. But they should probably have
the usual header. And we should probably start being explicit about v2
as well.

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