tests/test-1102

use inst.args instead of using __getitem__ directly

DeprecationWarning: __getitem__ not supported for exception classes in 3.x;
use args attribute

#!/bin/sh

rm -rf a
hg init a
cd a
echo a > a
hg ci -Am0
hg tag t1 # 1
hg tag --remove t1 # 2

hg co 1
hg tag -r0 t1
hg tags