Fix checkstyle.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/codec/trunk@1172288 13f79535-47bb-0310-9956-ffa450edef68

Author: garydgregory

checkstyle.xml

@@ -30,10 +30,11 @@ limitations under the License.
   </module>
 
   <module name="TreeWalker">
-
+    <property name="cacheFile" value="target/cachefile"/>
     <module name="OperatorWrap">
       <property name="option" value="eol"/>
     </module>
   </module>
+
 </module>