From 44dc23051fe2fbab5c63a0035c4a9916960eb8d7 Mon Sep 17 00:00:00 2001
From: Gergely Polonkai <gergely@polonkai.eu>
Date: Mon, 18 Jan 2021 10:42:32 +0100
Subject: [PATCH] [Bugfix] Make sure we can respond something to Prometheus if
 no sensors are present

---
 WeatherStation.ino | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/WeatherStation.ino b/WeatherStation.ino
index 7a64154..7e51758 100644
--- a/WeatherStation.ino
+++ b/WeatherStation.ino
@@ -109,7 +109,7 @@ send_metrics()
         1;
     char message[message_size];
 
-    snprintf(message, message_size,
+    snprintf(message, message_size, ""
 #if defined(DHT_TYPE) || defined(HAVE_BMP180)
              "# HELP temperature_celsius Temperature in degrees Celsius\n"
              "# TYPE temperature_celsius gauge\n"