From b271dc5230d7f13fccdacf6f417c4acaf895d61d Mon Sep 17 00:00:00 2001
From: rudolfkoenig <rudolfkoenig@2b470e98-0d58-463d-a4d8-8e2adae1ed80>
Date: Mon, 19 Jun 2017 09:13:10 +0000
Subject: [PATCH] FritzBoxUtils.pm: avoid WARNING on bogus result (Forum
 #73335)

git-svn-id: https://svn.fhem.de/fhem/trunk@14541 2b470e98-0d58-463d-a4d8-8e2adae1ed80
---
 fhem/FHEM/FritzBoxUtils.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fhem/FHEM/FritzBoxUtils.pm b/fhem/FHEM/FritzBoxUtils.pm
index b1b1706f9..6e6c7d882 100644
--- a/fhem/FHEM/FritzBoxUtils.pm
+++ b/fhem/FHEM/FritzBoxUtils.pm
@@ -18,7 +18,7 @@ FB_doCheckPW($$$)
   my $data = GetFileFromURL("http://$host/login_sid.lua", undef, undef, 1);
   return undef if(!$data);
 
-  my $chl;
+  my $chl="";
   $chl = $1 if($data =~ /<Challenge>(\w+)<\/Challenge>/i);
   my $chlAnsw .= "$chl-$pw";
   $chlAnsw =~ s/(.)/$1.chr(0)/eg; # works probably only with ascii