Minor fix in RefServletTest javadoc

Change-Id: I32bdab70ab570bd903c58c22e66c4b49dce918a7

gitiles-servlet/src/test/java/com/google/gitiles/RefServletTest.java

diff --git a/gitiles-servlet/src/test/java/com/google/gitiles/RefServletTest.java b/gitiles-servlet/src/test/java/com/google/gitiles/RefServletTest.java
index 04f82fd..9dabbe5 100644
--- a/gitiles-servlet/src/test/java/com/google/gitiles/RefServletTest.java
+++ b/gitiles-servlet/src/test/java/com/google/gitiles/RefServletTest.java
@@ -39,7 +39,7 @@
 
 import javax.servlet.http.HttpServletRequest;
 
-/** Tests for {@link Linkifier}. */
+/** Tests for {@link RefServlet}. */
 @RunWith(JUnit4.class)
 public class RefServletTest extends ServletTest {
   private void setUpSimpleRefs() throws Exception {