tests/test-1102

diffstat: made test case work with POSIX sh and printf

* arithmetic expression ((...)), without $, is bashism.
* printf '\xXX' seems non-standard. '\0' is okay.
  http://www.opengroup.org/onlinepubs/009695399/utilities/printf.html

tested with bash 4.0 and dash 0.5.5.1

#!/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