[patch] Make git dependencies optional.

[Stef Walter]

Wesley Shields wrote:
> On Mon, Oct 26, 2009 at 02:37:25PM -0600, Stef Walter wrote:
>> Thanks in advance for considering this patch. Please let me know if
>> additional changes are necessary. I'd love to help you get this into
>> FreeBSD ports.
> 
> I will review this and commit if appropriate with the next version
> update (which there is a PR for already).

Thanks. Much appreciated.

Stef