[PATCH v3] selftests/net: Add missing gitignore file

Compiled binary files should be added to .gitignore
'git status' complains:
   Untracked files:
   (use "git add <file>..." to include in what will be committed)
         net/netfilter/conntrack_reverse_clash

Cc: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: Jozsef Kadlecsik <redacted>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Li Zhijian <redacted>
---
Cc: netfilter-devel@vger.kernel.org
Cc: coreteam@netfilter.org
Cc: netdev@vger.kernel.org
---
Hello,
Cover letter is here.

This patch set aims to make 'git status' clear after 'make' and 'make
run_tests' for kselftests.
---
V3:
  sort the files

V2:
  split as a separate patch from a small one [0]
  [0] https://lore.kernel.org/linux-kselftest/20241015010817.453539-1-lizhijian@fujitsu.com/ (local)

Signed-off-by: Li Zhijian <redacted>
---
 tools/testing/selftests/net/netfilter/.gitignore | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/net/netfilter/.gitignore b/tools/testing/selftests/net/netfilter/.gitignore
index 0a64d6d0e29a..64c4f8d9aa6c 100644
--- a/tools/testing/selftests/net/netfilter/.gitignore
+++ b/tools/testing/selftests/net/netfilter/.gitignore

@@ -2,5 +2,6 @@
 audit_logread
 connect_close
 conntrack_dump_flush
+conntrack_reverse_clash
 sctp_collision
 nf_queue

-- 
2.44.0