FIXUP: Existing object replication is on by default (#1206)

# Summary

We some time ago updated bucket replication to perform existing object
replication by default. Not entirely sure when, but long enough that we
can just make the change.

Also fixed one out-of-band syntax error.

# Staged


http://192.241.195.202:9000/staging/REPLFIX/linux/administration/bucket-replication.html#replication-of-existing-objects

source/administration/bucket-replication.rst

@@ -176,45 +176,21 @@ application of object expiration.
 Replication of Existing Objects
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-MinIO by default does not enable existing object replication. Objects
-created before replication was configured *or* while replication is
-disabled are not synchronized to the target deployment.
-MinIO supports enabling replication of existing objects in a bucket. 
-
-Enabling existing object replication marks all objects or object prefixes that
-satisfy the replication rules as eligible for synchronization to the source
-cluster, *even if* those objects were created prior to configuring or enabling
-replication. You can enable existing object replication while configuring
-or modifying a replication rule:
-
-- For new replication rules, include ``"existing-objects"`` to the list of
-  replication features specified to :mc-cmd:`mc replicate add --replicate`.
-
-- For existing replication rules, add ``"existing-objects"`` to the list of
-  existing replication features using 
-  :mc-cmd:`mc replicate update --replicate`. You must specify *all* desired
-  replication features when editing the replication rule. 
-
-Enabling existing object replication does not increase the priority of objects
-pending replication. MinIO uses the same core 
-:ref:`replication scanner and queue system <minio-replication-process>` for
-detecting and synchronizing objects regardless of the enabled replication
-feature. The time required to fully synchronize a bucket depends on a number of
-factors, including but not limited to the current cluster replication load,
-overall cluster load, and the size of the namespace (all objects in the bucket).
-
-.. include:: /includes/common/scanner.rst
-   :start-after: start-scanner-speed-config
-   :end-before: end-scanner-speed-config
-
-If versioning was not previously enabled when configuring bucket replication, 
-existing objects have a ``versionid = null``. These objects do replicate.
-
-MinIO existing object replication
-implements functionality similar to 
-`AWS: Replicating existing objects between S3 buckets
-<https://aws.amazon.com/blogs/storage/replicating-existing-objects-between-s3-buckets/>`__
-without the overhead of contacting technical support. 
+MinIO by default replicates existing objects in the source bucket to the configured remote, similar to `AWS: Replicating existing objects between S3 buckets <https://aws.amazon.com/blogs/storage/replicating-existing-objects-between-s3-buckets/>`__ without the overhead of contacting technical support.
+
+MinIO marks all objects or object prefixes that satisfy the replication rules as eligible for synchronization to the remote cluster and bucket.
+MinIO only excludes those objects without a version ID, such as those objects written before enabling versioning on the bucket.
+
+You can disable existing object replication while configuring or modifying the bucket replication rule.
+You must specify *all* desired replication features during creation or modification:
+
+- For new replication rules, exclude ``"existing-objects"`` from the list of replication features specified to :mc-cmd:`mc replicate add --replicate`.
+
+- For existing replication rules, remove ``"existing-objects"`` from the list of existing replication features using :mc-cmd:`mc replicate update --replicate`. 
+  The new rule **replaces** the previous rule.
+
+Disabling existing object replication does not remove any objects already replicated to the remote bucket.
+
 
 Synchronous vs Asynchronous Replication
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

source/reference/minio-server/settings/kes.rst

@@ -10,7 +10,7 @@ Key Encryption Service Settings
    :local:
    :depth: 2
 
-.. |SSE|           replace:: :abbr:`SSE (Server-Side Encryption)`
+.. |SSE| replace:: :abbr:`SSE (Server-Side Encryption)`
 
 The following environment variables control how the MinIO Server interacts with the Key Encryption Service (KES) when managing encryption and keys.