Elastic{Account,Group}Index: Move the static Logger right after class

Aligning these two classes also with their ElasticChangeIndex sibling.

Change-Id: I6f96637f90d900608ac13d11480121d0dbb6a689

gerrit-elasticsearch/src/main/java/com/google/gerrit/elasticsearch/ElasticAccountIndex.java

@@ -57,6 +57,8 @@ import org.slf4j.LoggerFactory;
 
 public class ElasticAccountIndex extends AbstractElasticIndex<Account.Id, AccountState>
     implements AccountIndex {
+  private static final Logger log = LoggerFactory.getLogger(ElasticAccountIndex.class);
+
   static class AccountMapping {
     final MappingProperties accounts;
 
@@ -66,7 +68,6 @@ public class ElasticAccountIndex extends AbstractElasticIndex<Account.Id, Accoun
   }
 
   private static final String ACCOUNTS = "accounts";
-  private static final Logger log = LoggerFactory.getLogger(ElasticAccountIndex.class);
 
   private final AccountMapping mapping;
   private final Provider<AccountCache> accountCache;

gerrit-elasticsearch/src/main/java/com/google/gerrit/elasticsearch/ElasticGroupIndex.java

@@ -54,6 +54,8 @@ import org.slf4j.LoggerFactory;
 
 public class ElasticGroupIndex extends AbstractElasticIndex<AccountGroup.UUID, AccountGroup>
     implements GroupIndex {
+  private static final Logger log = LoggerFactory.getLogger(ElasticGroupIndex.class);
+
   static class GroupMapping {
     final MappingProperties groups;
 
@@ -63,7 +65,6 @@ public class ElasticGroupIndex extends AbstractElasticIndex<AccountGroup.UUID, A
   }
 
   private static final String GROUPS = "groups";
-  private static final Logger log = LoggerFactory.getLogger(ElasticGroupIndex.class);
 
   private final GroupMapping mapping;
   private final Provider<GroupCache> groupCache;