Remove extra character

Author: oschwald

src/test/java/com/maxmind/minfraud/response/WarningTest.java

@@ -8,7 +8,7 @@
 public class WarningTest extends AbstractOutputTest {
 
     @Test
-    public void testWarningn() throws Exception {
+    public void testWarning() throws Exception {
         String code = "INVALID_INPUT";
         String msg = "Input invalid";
         String pointer = "/first/second";