ZOOKEEPER-4852: Fix the bad "*uuuuu" mark in the ASF license

Reviewers: tisonkun, kezhuw
Author: aditya0yadav
Closes #2207 from aditya0yadav/master

(cherry picked from commit 9d52264)

zookeeper-server/src/main/java/org/apache/zookeeper/server/Request.java

@@ -8,9 +8,9 @@
  * with the License.  You may obtain a copy of the License at
  *
  *     http://www.apache.org/licenses/LICENSE-2.0
- *uuuuu
+ *
  * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "/RequuuAS IS" BASIS,
+ * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.