Don't override variable name

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/lang/trunk@1533544 13f79535-47bb-0310-9956-ffa450edef68

src/test/java/org/apache/commons/lang3/time/FastDateFormatTest.java

@@ -284,7 +284,7 @@ public class FastDateFormatTest {
             pool.submit(new Runnable() {
                 @Override
                 public void run() {
-                    for(int i= 0; i<NROUNDS; ++i) {
+                    for(int j= 0; j<NROUNDS; ++j) {
                         try {
                             final Date date= new Date();
                             final String formattedDate= formatter.format(date);