tools: tweak the displayed version format

Prepend the version string with a 'v' to stay consistent with git
tags we're using.

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

diff --git a/src/tools/tools-common.c b/src/tools/tools-common.c
index 4fbc075c4a8ad64a54ffa37c4f5e87e30417c248..4a7a7764e932a58fb2d7012ef90b0ba598b86e3c 100644 (file)
--- a/src/tools/tools-common.c
+++ b/src/tools/tools-common.c
@@ -50,7 +50,7 @@ void die_perror(const char *fmt, ...)
 
 void print_version(void)
 {
-       printf("%s (libgpiod) %s\n",
+       printf("%s (libgpiod) v%s\n",
               program_invocation_short_name, gpiod_version_string());
        printf("Copyright (C) 2017-2018 Bartosz Golaszewski\n");
        printf("License: LGPLv2.1\n");