change priority number

packages/irfanview.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <packages:packages xmlns:packages="http://www.wpkg.org/packages">
 
-  <package id="irfanview" name="Irfanview" revision="%version%.1" priority="0" reboot="false">
+  <package id="irfanview" name="Irfanview" revision="%version%.1" priority="30" reboot="false">
     <variable name="version" value="4.54" />
     <variable name="shortversion" value="454" />