Use MSG_NOSIGNAL on stratum send()
diff --git a/util.c b/util.c
index f599ac8..bcf9349 100644
--- a/util.c
+++ b/util.c
@@ -958,7 +958,7 @@ static enum send_ret __stratum_send(struct pool *pool, char *s, ssize_t len)
FD_SET(sock, &wd);
if (select(sock + 1, NULL, &wd, NULL, &timeout) < 1)
return SEND_SELECTFAIL;
- sent = send(pool->sock, s + ssent, len, 0);
+ sent = send(pool->sock, s + ssent, len, MSG_NOSIGNAL);
if (sent < 0) {
if (!sock_blocks())
return SEND_SENDFAIL;