xinetd/xinetd_tests.sh: clean up tabs

replace tabs with 4 spaces.
The echo <<-EOF lines become no indentation.

Signed-off-by: Xie Lingyun <lingyun.xie@bj.cs2c.com.cn>
Reviewed-by: Caspar Zhang <caspar@casparzhang.com>
Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
1 file changed