Bug 401918: describekeywords.cgi with no keywords simply displays an empty page…

describekeywords.cgi

@@ -24,6 +24,9 @@ my $vars = {};
 Bugzilla->switch_to_shadow_db;
 
 $vars->{'keywords'} = Bugzilla::Keyword->get_all_with_bug_count();
+if (!@{$vars->{keywords}}) {
+    ThrowUserError("no_keywords");
+}
 $vars->{'caneditkeywords'} = $user->in_group("editkeywords");
 
 print $cgi->header();

template/en/default/global/user-error.html.tmpl

@@ -1282,6 +1282,11 @@
     [% title = "No Initial $terms.Bug Status" %]
     No [% terms.bug %] status is available on [% terms.bug %] creation.
     Please report the problem to [% Param("maintainer") %].
+    
+  [% ELSIF error == "no_keywords" %]
+    [% title = "No Keywords" %]
+    [% admindocslinks = {'keywords.html' => 'Setting up a keyword'} %]
+    No keywords have been defined for this installation.
 
   [% ELSIF error == "no_new_quips" %]
     [% title = "No New Quips" %]