From 361fce3ff317139ab037be29c79f0b4ec17be882 Mon Sep 17 00:00:00 2001
From: Jordi Sanfeliu <jordi@fibranet.cat>
Date: Tue, 17 Jun 2014 19:32:50 +0200
Subject: [PATCH] small fix

---
 lib/Monitorix.pm | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/Monitorix.pm b/lib/Monitorix.pm
index 2b34de2..94f4a56 100644
--- a/lib/Monitorix.pm
+++ b/lib/Monitorix.pm
@@ -90,12 +90,12 @@ sub setup_riglim {
 	my ($rigid, $limit) = @_;
 	my @riglim;
 
-	my ($upper, $lower) = split(':', trim($limit));
-	if(trim($rigid) eq 1) {
+	my ($upper, $lower) = split(':', trim($limit) || "0:0");
+	if(trim($rigid || 0) eq 1) {
 		push(@riglim, "--upper-limit=" . ($upper || 0));
 		push(@riglim, "--lower-limit=" . ($lower || 0));
 	} else {
-		if(trim($rigid) eq 2) {
+		if(trim($rigid || 0) eq 2) {
 			push(@riglim, "--upper-limit=" . ($upper || 0));
 			push(@riglim, "--lower-limit=" . ($lower || 0));
 			push(@riglim, "--rigid");