Upgrade to latest clirr plugin version 2.2.2 (fixes problem downloading the old artifact from the repo)

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/io/trunk@687301 13f79535-47bb-0310-9956-ffa450edef68

Author: Niall Pemberton

pom.xml

@@ -289,7 +289,7 @@
       <plugin>
         <groupId>org.codehaus.mojo</groupId>
         <artifactId>clirr-maven-plugin</artifactId>
-        <version>2.2</version>
+        <version>2.2.2</version>
         <configuration>
           <comparisonVersion>1.4</comparisonVersion>
           <minSeverity>info</minSeverity>