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[ Upstream commit3220fb6678] This is a follow up adjustment to commit6c92bd5cd4("selftests/bpf: Test_progs indicate to shell on non-actions"), that returns shell exit indication EXIT_FAILURE (value 1) when user selects a non-existing test. The problem with using EXIT_FAILURE is that a shell script cannot tell the difference between a non-existing test and the test failing. This patch uses value 2 as shell exit indication. (Aside note unrecognized option parameters use value 64). Fixes:6c92bd5cd4("selftests/bpf: Test_progs indicate to shell on non-actions") Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Andrii Nakryiko <andriin@fb.com> Link: https://lore.kernel.org/bpf/159410593992.1093222.90072558386094370.stgit@firesoul Signed-off-by: Sasha Levin <sashal@kernel.org>