re-enable shallow git clones ('--depth 1')

SVN-Revision: 31469

scripts/feeds

@@ -116,8 +116,8 @@ my %update_method = (
 		'update'	=> "",
 		'revision'	=> "echo -n 'local'"},
 	'src-git' => {
-		'init'		=> "git clone '%s' '%s'",
-		'init_branch'	=> "git clone --branch '%s' '%s' '%s'",
+		'init'          => "git clone --depth 1 '%s' '%s'",
+		'init_branch'   => "git clone --depth 1 --branch '%s' '%s' '%s'",
 		'update'	=> "git pull",
 		'controldir'	=> ".git",
 		'revision'	=> "git show --abbrev-commit HEAD | head -n 1 | cut -d ' ' -f 2 | tr -d '\n'"},