[PATCH] kselftest/arm64: Fix build warnings for ptrace

[Dev Jain]

A "%s" is missing in ksft_exit_fail_msg(); instead, use the newly
introduced ksft_exit_fail_perror().

Signed-off-by: Dev Jain <dev.j...@arm.com>
---
 tools/testing/selftests/arm64/abi/ptrace.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/arm64/abi/ptrace.c 
b/tools/testing/selftests/arm64/abi/ptrace.c
index e4fa507cbdd0..b51d21f78cf9 100644
--- a/tools/testing/selftests/arm64/abi/ptrace.c
+++ b/tools/testing/selftests/arm64/abi/ptrace.c
@@ -163,10 +163,10 @@ static void test_hw_debug(pid_t child, int type, const 
char *type_name)
 static int do_child(void)
 {
        if (ptrace(PTRACE_TRACEME, -1, NULL, NULL))
-               ksft_exit_fail_msg("PTRACE_TRACEME", strerror(errno));
+               ksft_exit_fail_perror("PTRACE_TRACEME");
 
        if (raise(SIGSTOP))
-               ksft_exit_fail_msg("raise(SIGSTOP)", strerror(errno));
+               ksft_exit_fail_perror("raise(SIGSTOP)");
 
        return EXIT_SUCCESS;
 }
-- 
2.30.2