tests: shell: check for features not available in 5.4

5.4 -stable kernels report failures in these tests, this kernel version
is lacking these feature.

The bitshift requirement is needed by this ruleset:

 table ip x {
        set s13 {
                typeof tcp option mptcp subtype
                elements = { mp-join, dss }
        }

        chain y {
                tcp option mptcp subtype @s13 accept
        }
 }

which uses bitshift in its bytecode.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/tests/shell/testcases/json/single_flag b/tests/shell/testcases/json/single_flag
index 41fab63b..43ae4528 100755
--- a/tests/shell/testcases/json/single_flag
+++ b/tests/shell/testcases/json/single_flag
@@ -7,6 +7,7 @@
 #   recognized in input (checked against standard syntax input/output)
 
 # NFT_TEST_REQUIRES(NFT_TEST_HAVE_json)
+# NFT_TEST_REQUIRES(NFT_TEST_HAVE_table_flag_persist)
 
 set -e