[cairo] Use of git

[Antoine Azar]

Slightly off-topic, but I was just curious as to why we use git for 
Cairo's source control? I'm admitedly a total beginner with git, but 
it seems to me the only advantage it has over something like Perforce 
is the ability to generate and email patches. Other than that, I find 
it much less intuitive than other solutions such as Perforce or SVN, 
which can be just as easily "distributed" by creating branches off 
repositories.

Just curious!
Thanks,
Antoine