Merge pull request #3358 from Icinga/bugfix/getconfidentialtraceasstring-index-args

IcingaException::getConfidentialTraceAsString(): respect functions which don't take args "by definition"

library/Icinga/Exception/IcingaException.php

@@ -88,6 +88,7 @@ class IcingaException extends Exception
 
             $trace[] = "{$frame['function']}(";
 
+            if (isset($frame['args'])) {
                 $args = array();
                 foreach ($frame['args'] as $arg) {
                     $type = gettype($arg);
@@ -95,6 +96,7 @@ class IcingaException extends Exception
                 }
 
                 $trace[] = implode(', ', $args);
+            }
             $trace[] = ")\n";
         }