Merge pull request #885 from ikedas/issue-876_2 by ikedas

WWSympa: Bug: Accessing to /sympa/help may crash

src/cgi/wwsympa.fcgi.in

@@ -3867,7 +3867,7 @@ sub do_help {
     # Given partial top URI, redirect to base.
     unless ($in{'help_topic'} or $ENV{REQUEST_URI} =~ /\/\z/) {
         $param->{'redirect_to'} = Sympa::get_url(
-            $list, 'help',
+            $robot, 'help',
             nomenu    => $param->{'nomenu'},
             paths     => [''],                 # Ends with '/'.
             authority => 'local'