Avoid calling get_statline on exit.

cgminer.c

@@ -7084,6 +7084,8 @@ static void log_print_status(struct cgpu_info *cgpu)
 	applog(LOG_WARNING, "%s", logline);
 }
 
+static void noop_get_statline(char __maybe_unused *buf, size_t __maybe_unused bufsiz, struct cgpu_info __maybe_unused *cgpu);
+
 void print_summary(void)
 {
 	struct timeval diff;
@@ -7155,6 +7157,7 @@ void print_summary(void)
 	for (i = 0; i < total_devices; ++i) {
 		struct cgpu_info *cgpu = get_devices(i);
 
+		cgpu->drv->get_statline = &noop_get_statline;
 		log_print_status(cgpu);
 	}