Fix test case.

apm-sniffer/apm-sdk-plugin/spymemcached-2.x-plugin/src/test/java/org/skywalking/apm/plugin/spymemcached/v2/MemcachedMethodInterceptorTest.java

@@ -112,7 +112,7 @@ public class MemcachedMethodInterceptorTest {
         assertThat(span.isExit(), is(true));
         assertThat(SpanHelper.getComponentId(span), is(20));
         List<KeyValuePair> tags = SpanHelper.getTags(span);
-        assertThat(tags.get(0).getValue(), is("Memcache"));
+        assertThat(tags.get(0).getValue(), is("Memcached"));
         assertThat(tags.get(1).getValue(), is("set OperationKey"));
         assertThat(SpanHelper.getLayer(span), is(SpanLayer.DB));
     }