Merge pull request #7212 from awochna/default-request-timeout

Incorrect default `elasticsearch.requestTimeout`

docs/kibana-yml.asciidoc

@@ -27,7 +27,7 @@ authority for your Elasticsearch instance.
 to `false`.
 `elasticsearch.pingTimeout:`:: *Default: the value of the `elasticsearch.requestTimeout` setting* Time in milliseconds to 
 wait for Elasticsearch to respond to pings.
-`elasticsearch.requestTimeout:`:: *Default: 300000* Time in milliseconds to wait for responses from the back end or 
+`elasticsearch.requestTimeout:`:: *Default: 30000* Time in milliseconds to wait for responses from the back end or 
 Elasticsearch. This value must be a positive integer.
 `elasticsearch.requestHeadersWhitelist:`:: *Default: `[ 'authorization' ]`* List of Kibana client-side headers to send to Elasticsearch.
 To send *no* client-side headers, set this value to [] (an empty list).