From d346f47ff04394c761367e47b727d85b4f46d433 Mon Sep 17 00:00:00 2001
From: Andreas Scherbaum <andreas@scherbaum.biz>
Date: Fri, 25 May 2012 23:44:09 +0200
Subject: [PATCH] - fix some warnings

---
 docbot.pl | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/docbot.pl b/docbot.pl
index ac1b3b0..6e6652e 100755
--- a/docbot.pl
+++ b/docbot.pl
@@ -1661,6 +1661,10 @@ sub is_a_channel {
 sub extract_channel {
     my $string = shift;
 
+    if (!defined($string)) {
+        return '';
+    }
+
     if (substr($string, 0, 1) eq '#') {
         return substr($string, 1);
     }
-- 
2.39.5