[HOTFIX] History Server API docs error fix.

Author: harishreedharan

core/src/main/scala/org/apache/spark/status/api/v1/ApiRootResource.scala

@@ -167,14 +167,14 @@ private[v1] class ApiRootResource extends UIRootFromServletContext {
 
   @Path("applications/{appId}/logs")
   def getEventLogs(
-    @PathParam("appId") appId: String): EventLogDownloadResource = {
+      @PathParam("appId") appId: String): EventLogDownloadResource = {
     new EventLogDownloadResource(uiRoot, appId, None)
   }
 
   @Path("applications/{appId}/{attemptId}/logs")
   def getEventLogs(
-    @PathParam("appId") appId: String,
-    @PathParam("attemptId") attemptId: String): EventLogDownloadResource = {
+      @PathParam("appId") appId: String,
+      @PathParam("attemptId") attemptId: String): EventLogDownloadResource = {
     new EventLogDownloadResource(uiRoot, appId, Some(attemptId))
   }
 }

docs/monitoring.md

@@ -233,7 +233,7 @@ for a running application, at `http://localhost:4040/api/v1`.
     <td>Download the event logs for all attempts of the given application as a zip file</td>
   </tr>
   <tr>
-    <td><code>/applications/[app-id]/[attempt-id/logs</code></td>
+    <td><code>/applications/[app-id]/[attempt-id]/logs</code></td>
     <td>Download the event logs for the specified attempt of the given application as a zip file</td>
   </tr>
 </table>