From 9e3d65e4e99d4343ea97145046ff0cefad4cc2a5 Mon Sep 17 00:00:00 2001
From: "Alexander A. Klimov" <alexander.klimov@netways.de>
Date: Tue, 12 May 2015 17:44:53 +0200
Subject: [PATCH] Display performance data metrics with value 0

fixes #8744
---
 modules/monitoring/library/Monitoring/Plugin/PerfdataSet.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/monitoring/library/Monitoring/Plugin/PerfdataSet.php b/modules/monitoring/library/Monitoring/Plugin/PerfdataSet.php
index 269107c82..d503bc19f 100644
--- a/modules/monitoring/library/Monitoring/Plugin/PerfdataSet.php
+++ b/modules/monitoring/library/Monitoring/Plugin/PerfdataSet.php
@@ -83,7 +83,7 @@ class PerfdataSet implements IteratorAggregate
             $label = trim($this->readLabel());
             $value = trim($this->readUntil(' '));
 
-            if ($label && $value) {
+            if ($label) {
                 $this->perfdata[] = new Perfdata($label, $value);
             }
         }