Fix a few stylistic issues in preparation for Checkstyle addition

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=230524735

java/google/registry/tools/RegistrarContactCommand.java

@@ -185,7 +185,7 @@ final class RegistrarContactCommand extends MutatingCommand {
       case CREATE:
         stageEntityChange(null, createContact(registrar));
         if ((visibleInDomainWhoisAsAbuse != null) && visibleInDomainWhoisAsAbuse) {
-          unsetOtherWhoisAbuseFlags(contacts, null /* emailAddressNotToChange */ );
+          unsetOtherWhoisAbuseFlags(contacts, null);
         }
         break;
       case UPDATE:

java/google/registry/tools/UpdateServerLocksCommand.java

@@ -51,7 +51,7 @@ final class UpdateServerLocksCommand extends MutatingEppToolCommand {
       names = {"-a", "--apply"},
       description = "Comma-delimited set of locks to apply (or 'all'). "
           + "Valid locks: serverDeleteProhibited, serverHold, serverRenewProhibited, "
-          + "serverTransferProhibited, serverUpdateProhibited" )
+          + "serverTransferProhibited, serverUpdateProhibited")
   private List<String> locksToApply = new ArrayList<>();
 
   @Parameter(

java/google/registry/tools/server/KillAllCommitLogsAction.java

@@ -57,7 +57,7 @@ public class KillAllCommitLogsAction implements Runnable {
 
   @Override
   public void run() {
-    checkArgument( // safety
+    checkArgument(
         RegistryEnvironment.get() == RegistryEnvironment.CRASH
             || RegistryEnvironment.get() == RegistryEnvironment.UNITTEST,
         "DO NOT RUN ANYWHERE ELSE EXCEPT CRASH OR TESTS.");

java/google/registry/tools/server/KillAllEppResourcesAction.java

@@ -53,7 +53,7 @@ public class KillAllEppResourcesAction implements Runnable {
 
   @Override
   public void run() {
-    checkArgument( // safety
+    checkArgument(
         RegistryEnvironment.get() == RegistryEnvironment.CRASH
             || RegistryEnvironment.get() == RegistryEnvironment.UNITTEST,
         "DO NOT RUN ANYWHERE ELSE EXCEPT CRASH OR TESTS.");