tests: shell: use bash in 0011reset_0

One of my boxes does not use bash as /bin/sh, update this test to
explicitly use bash, otherwise I hit:

  testcases/rule_management/0011reset_0: 71: Syntax error: "(" unexpected

Fixes: 1694df2de79f ("Implement 'reset rule' and 'reset rules' commands")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/tests/shell/testcases/rule_management/0011reset_0 b/tests/shell/testcases/rule_management/0011reset_0
index 1a28b49f..8d230796 100755
--- a/tests/shell/testcases/rule_management/0011reset_0
+++ b/tests/shell/testcases/rule_management/0011reset_0
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 set -e