refine wikipedia link creator for GND

a36bc41f · Mathias Goebel · 2e77ab3a · a36bc41f
Commit a36bc41f authored Aug 29, 2018 by Mathias Goebel
--- a/modules/fontane/index-processor.xqm
+++ b/modules/fontane/index-processor.xqm
@@ -257,7 +257,7 @@ return
                else "DB"
            })
        else (),
-        if($wikipedia = "") then ()
+        if(empty($wikipedia)) then ()
        else (",&#160;",
            element xhtml:a {
                attribute title {"Link zu Wikipedia basierend auf GND"},