Refer to Datastore everywhere correctly by its capitalized form

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=147479683

java/google/registry/model/translators/CreateAutoTimestampTranslatorFactory.java

@@ -36,7 +36,7 @@ public class CreateAutoTimestampTranslatorFactory
 
       /**
        * Load an existing timestamp. It can be assumed to be non-null since if the field is null in
-       * datastore then Objectify will skip this translator and directly load a null.
+       * Datastore then Objectify will skip this translator and directly load a null.
        */
       @Override
       public CreateAutoTimestamp loadValue(Date datastoreValue) {

java/google/registry/model/translators/ImmutableSortedMapTranslatorFactory.java

@@ -143,7 +143,7 @@ abstract class ImmutableSortedMapTranslatorFactory<K extends Comparable<? super
           ImmutableSortedMap<K, V> mapToSave = transformBeforeSave(
               ImmutableSortedMap.copyOfSorted(nullToEmpty(mapFromPojo)));
           if (mapToSave.isEmpty()) {
-            throw new SkipException();  // the datastore doesn't store empty lists
+            throw new SkipException();  // Datastore doesn't store empty lists
           }
           Node node = new Node(path);
           for (Map.Entry<K, V> entry : mapToSave.entrySet()) {

java/google/registry/model/translators/UpdateAutoTimestampTranslatorFactory.java

@@ -35,7 +35,7 @@ public class UpdateAutoTimestampTranslatorFactory
 
       /**
        * Load an existing timestamp. It can be assumed to be non-null since if the field is null in
-       * datastore then Objectify will skip this translator and directly load a null.
+       * Datastore then Objectify will skip this translator and directly load a null.
        */
       @Override
       public UpdateAutoTimestamp loadValue(Date datastoreValue) {