[PATCH] app/testpmd: fix help string of BPF load command

[Chaoyong He <chaoyong.he@corigine.com>]

Based on the logic of 'bpf_parse_flags()' and the 'bpf-load' section of
'testpmd_funcs.rst' document, the 'B' flag in the help string of
bpf-load command should be '-'.

Fixes: e977e4199a8d ("app/testpmd: add commands to load/unload BPF filters")
Cc: konstantin.ananyev@intel.com
Cc: stable@dpdk.org

Signed-off-by: Chaoyong He <chaoyong.he@corigine.com>
Reviewed-by: Long Wu <long.wu@corigine.com>
Reviewed-by: Peng Zhang <peng.zhang@corigine.com>
---
 app/test-pmd/bpf_cmd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/test-pmd/bpf_cmd.c b/app/test-pmd/bpf_cmd.c
index 46f6b7d6d2..24d34f983e 100644
--- a/app/test-pmd/bpf_cmd.c
+++ b/app/test-pmd/bpf_cmd.c
@@ -139,7 +139,7 @@ static cmdline_parse_token_string_t cmd_load_bpf_prm =
 cmdline_parse_inst_t cmd_operate_bpf_ld_parse = {
 	.f = cmd_operate_bpf_ld_parsed,
 	.data = NULL,
-	.help_str = "bpf-load rx|tx <port> <queue> <J|M|B> <file_name>",
+	.help_str = "bpf-load rx|tx <port> <queue> <J|M|-> <file_name>",
 	.tokens = {
 		(void *)&cmd_load_bpf_start,
 		(void *)&cmd_load_bpf_dir,
-- 
2.39.1