Display version on minerd --help usage output.
diff --git a/cpu-miner.c b/cpu-miner.c
index db1fd57..5371296 100644
--- a/cpu-miner.c
+++ b/cpu-miner.c
@@ -327,6 +327,7 @@ static void show_usage(void)
{
int i;
+ printf("minerd version %s\n\n", VERSION);
printf("Usage:\tminerd [options]\n\nSupported options:\n");
for (i = 0; i < ARRAY_SIZE(options_help); i++) {
struct option_help *h;