Update tests from Apache Commons IO 2.4 to 2.5.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/csv/trunk@1740572 13f79535-47bb-0310-9956-ffa450edef68

Author: garydgregory

pom.xml

@@ -42,7 +42,7 @@ CSV files of various types.
     <dependency>
       <groupId>commons-io</groupId>
       <artifactId>commons-io</artifactId>
-      <version>2.4</version>
+      <version>2.5</version>
       <scope>test</scope>
     </dependency>
     <dependency>