[Buildroot] git upgrade question

[Dan Pattison]

Hello List,

I am using the 2009.02 release of BuildRoot. Is there any way using git 
to upgrade to 2009.05 without wiping out all of my changes and 
customizations? I have browsed the git website but found nothing about 
upgrading a build environment started with svn. Is there a git command 
to do this?

Thanks,
Dan Pattison