Nit fixes and formatting following elastic#62490 comments

Resolves: elastic#63792

Author: BigPandaToo

x-pack/docs/en/rest-api/security/get-tokens.asciidoc

@@ -138,8 +138,8 @@ seconds) that the token expires in, and the type:
       "type" : "file"
     },
     "lookup_realm" : {
-    "name" : "file",
-    "type" : "file"
+      "name" : "file",
+      "type" : "file"
   },
   "authentication_type" : "realm"
   }

x-pack/plugin/security/src/internalClusterTest/java/org/elasticsearch/xpack/security/authc/TokenAuthIntegTests.java

@@ -135,7 +135,7 @@ public void testTokenServiceCanRotateKeys() throws Exception {
             assertNotEquals(activeKeyHash, tokenService.getActiveKeyHash());
         }
         assertNotNull(response.getAuthentication());
-        assertEquals(response.getAuthentication().getUser().getUsername(), SecuritySettingsSource.TEST_USER_NAME);
+        assertEquals(SecuritySettingsSource.TEST_USER_NAME, response.getAuthentication().getUser().getUsername());
     }
 
     public void testExpiredTokensDeletedAfterExpiration() throws Exception {

x-pack/plugin/security/src/internalClusterTest/java/org/elasticsearch/xpack/security/authc/pki/PkiAuthDelegationIntegTests.java

@@ -150,6 +150,7 @@ public void testDelegateThenAuthenticate() throws Exception {
                 String token = delegatePkiResponse.getAccessToken();
                 assertThat(token, is(notNullValue()));
                 assertNotNull(delegatePkiResponse.getAuthentication());
+                assertEquals("Elasticsearch Test Client", delegatePkiResponse.getAuthentication().getUser().getUsername());
 
                 // authenticate
                 optionsBuilder = RequestOptions.DEFAULT.toBuilder();

x-pack/qa/oidc-op-tests/src/test/java/org/elasticsearch/xpack/security/authc/oidc/OpenIdConnectAuthIT.java

@@ -421,6 +421,7 @@ private Tuple<String, String> completeAuthentication(String redirectUri, String
             assertNotNull(responseBody.get("access_token"));
             assertNotNull(responseBody.get("refresh_token"));
             assertNotNull(responseBody.get("authentication"));
+            assertEquals("facilitator", ((Map)responseBody.get("authentication")).get("username"));
             return Tuple.tuple(responseBody.get("access_token").toString(), responseBody.get("refresh_token").toString());
         }
     }

x-pack/qa/saml-idp-tests/src/test/java/org/elasticsearch/xpack/security/authc/saml/SamlAuthenticationIT.java

@@ -207,6 +207,7 @@ private Tuple<String, String> loginViaSaml(String realmName) throws Exception {
             final Object authentication = result.get("authentication");
             assertThat(authentication, notNullValue());
             assertThat(authentication, instanceOf(Map.class));
+            assertEquals("thor", ((Map)authentication).get("username"));
 
             return new Tuple<>((String) accessToken, (String) refreshToken);
         }