[PATCH bpf-next v1 5/6] selftests/bpf: Switch to non-unicode character in output

[Kumar Kartikeya Dwivedi <memxor@gmail.com>]

GNU89 doesn't allow unicode characters in printf output, and build gives
the following warning:

warning: universal character names are only valid in C++ and C99

Fix by using ASCII +/-.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 tools/testing/selftests/bpf/bench.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/bpf/bench.c b/tools/testing/selftests/bpf/bench.c
index cc4722f693e9..58a32ff2eb1b 100644
--- a/tools/testing/selftests/bpf/bench.c
+++ b/tools/testing/selftests/bpf/bench.c
@@ -126,11 +126,11 @@ void hits_drops_report_final(struct bench_res res[], int res_cnt)
 		drops_stddev = sqrt(drops_stddev);
 		total_ops_stddev = sqrt(total_ops_stddev);
 	}
-	printf("Summary: hits %8.3lf \u00B1 %5.3lfM/s (%7.3lfM/prod), ",
+	printf("Summary: hits %8.3lf +/- %5.3lfM/s (%7.3lfM/prod), ",
 	       hits_mean, hits_stddev, hits_mean / env.producer_cnt);
-	printf("drops %8.3lf \u00B1 %5.3lfM/s, ",
+	printf("drops %8.3lf +/- %5.3lfM/s, ",
 	       drops_mean, drops_stddev);
-	printf("total operations %8.3lf \u00B1 %5.3lfM/s\n",
+	printf("total operations %8.3lf +/- %5.3lfM/s\n",
 	       total_ops_mean, total_ops_stddev);
 }
 
-- 
2.33.1