selftests/bpf: test_progs: drop extra trailing tab

Small (un)related cleanup.

Cc: Andrii Nakryiko <andriin@fb.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

tools/testing/selftests/bpf/test_progs.c

@@ -278,7 +278,7 @@ enum ARG_KEYS {
 	ARG_VERIFIER_STATS = 's',
 	ARG_VERBOSE = 'v',
 };
-	
+
 static const struct argp_option opts[] = {
 	{ "num", ARG_TEST_NUM, "NUM", 0,
 	  "Run test number NUM only " },