[PATCH v1] btt: fix error configuration do-active parameter

handle_args handle do_p_live function using Z parameter.
Therefore, when configuring parameters, it should also be Z.

The introduction of parameter help also corresponds to Z.
"[ -Z               | --do-active\n" \

Signed-off-by: Fanhui Meng <[email protected]>
---
 btt/args.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/btt/args.c b/btt/args.c
index ec65399..56e3f6b 100644
--- a/btt/args.c
+++ b/btt/args.c
@@ -191,7 +191,7 @@ static struct option l_opts[] = {
 		.name = "do-active",
 		.has_arg = no_argument,
 		.flag = NULL,
-		.val = 'z'
+		.val = 'Z'
 	},
 	{
 		.name = "easy-parse-avgs",
-- 
2.25.1