git-svn: update tests for recent changes

* Enable test for delta transfers in full-svn-test.

* Run tests against the root of the repository so we won't have
  to revisit 308906fa6e and
  efe4631def again.
  The graft-branches test still runs as before.

Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>

t/lib-git-svn.sh

@@ -45,6 +45,6 @@ else
 	svnadmin create "$svnrepo"
 fi
 
-svnrepo="file://$svnrepo/test-git-svn"
+svnrepo="file://$svnrepo"