Fix file descriptor leak on erroring client disconnects

- Client connections in error also need to be closed/freed
- This fixes a file descriptor leak that would result in a bip crash

Signed-off-by: Loïc Gomez <bip@animanova.fr>

src/connection.c

@@ -62,7 +62,7 @@ void connection_close(connection_t *cn)
 {
 	mylog(LOG_DEBUG, "Connection close asked. FD:%d (status: %d)",
 	      (long)cn->handle, cn->connected);
-	if (cn->connected != CONN_DISCONN && cn->connected != CONN_ERROR) {
+	if (cn->connected != CONN_DISCONN) {
 		cn->connected = CONN_DISCONN;
 		if (close(cn->handle) == -1)
 			mylog(LOG_WARN, "Error on socket close: %s",