git svn clone options

Hi,

I tried
git svn clone --stdlayout --branch ABC
but svn branches were missing (trunk was present), compared to the result of
git svn clone --stdlayout

Could you clarify --branch option, is it the same as --branches.
I thought git clone has --branch option, so I tried this option for svn.

Alos, I tried
git svn clone --stdlayout --no-checkout
It worked without checking out files.
but git-svn documentation seems to not mention this option.

Could you also tell what options are supported in both git clone and
git svn clone, and git clone only options?

Regards,

ch3cooli