Add the ability to pass through any string property to PCjs declared at the top of the Markdown file

modules/pcjs/lib/fdc.js

@@ -1441,7 +1441,7 @@ FDC.prototype.findDiskette = function(sPath)
             }
         }
     }
-    return null;
+    return str.getBaseName(sPath, true);
 };
 
 /**