From: Bartosz Golaszewski <bartekgola@gmail.com>
Date: Mon, 12 Jun 2017 10:41:48 +0000 (+0200)
Subject: gpiofind: tweak the error message on invalid arguments
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=623d8d0cfb822fe8720306ebb9c16760bb79bcdd;p=qemu-gpiodev%2Flibgpiod.git

gpiofind: tweak the error message on invalid arguments

We print the same error message in case of too many or not enough
arguments. Make the message appropriate for both cases.

Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>
---

diff --git a/src/tools/gpiofind.c b/src/tools/gpiofind.c
index da285d3..9fbea7a 100644
--- a/src/tools/gpiofind.c
+++ b/src/tools/gpiofind.c
@@ -63,7 +63,7 @@ int main(int argc, char **argv)
 	argv += optind;
 
 	if (argc != 1)
-		die("GPIO line name must be specified");
+		die("exactly one GPIO line name must be specified");
 
 	line = gpiod_line_find_by_name(argv[0]);
 	if (!line)