Fixing the expected exception so the test doesn't fail (see LANG-180)

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/lang/trunk@616173 13f79535-47bb-0310-9956-ffa450edef68

src/test/org/apache/commons/lang/StringUtilsTest.java

@@ -1082,7 +1082,7 @@ public class StringUtilsTest extends TestCase {
         try {
             StringUtils.replaceEachRepeatedly("abcde", new String[]{"ab", "d"}, new String[]{"d", "ab"});
             fail("Should be a circular reference");
-        } catch (IllegalArgumentException e) {}
+        } catch (IllegalStateException e) {}
 
         //JAVADOC TESTS END