Fix changelog entry from PR #2098.

CHANGELOG.md

@@ -29,6 +29,7 @@
 * [ENHANCEMENT] Store-gateway: Add experimental configuration option for the store-gateway to attempt to pre-populate the file system cache when memory-mapping index-header files. Enabled with `-blocks-storage.bucket-store.index-header.map-populate-enabled=true`. Note this flag only has an effect when running on Linux. #2019 #2054
 * [ENHANCEMENT] Chunk Mapper: reduce memory usage of async chunk mapper. #2043
 * [ENHANCEMENT] Ingesters: Added new configuration option that makes it possible for mimir ingesters to perform queries on overlapping blocks in the filesystem. Enabled with `-blocks-storage.tsdb.allow-overlapping-queries`. #2091
+* [ENHANCEMENT] Ingester: reduce sleep time when reading WAL. #2098
 * [BUGFIX] Fix regexp parsing panic for regexp label matchers with start/end quantifiers. #1883
 * [BUGFIX] Ingester: fixed deceiving error log "failed to update cached shipped blocks after shipper initialisation", occurring for each new tenant in the ingester. #1893
 * [BUGFIX] Ring: fix bug where instances may appear unhealthy in the hash ring web UI even though they are not. #1933
@@ -37,7 +38,6 @@
 * [BUGFIX] Ruler: report failed evaluation metric for any 5xx status code returned by the query-frontend when remote operational mode is enabled. #2053
 * [BUGFIX] Ingester: fix slow rollout when using `-ingester.ring.unregister-on-shutdown=false` with long `-ingester.ring.heartbeat-period`. #2085
 * [BUGFIX] Ruler: add timeout for remote rule evaluation queries to prevent rule group evaluations getting stuck indefinitely. The duration is configurable with  (`-ruler.query-frontend.timeout` (default `2m`). #2090
-* [BUGFIX] Ingester: reduce sleep time when reading WAL. #2098
 * [BUGFIX] Limits: Active series custom tracker configuration has been named back from `active_series_custom_trackers_config` to `active_series_custom_trackers`. For backwards compatibility both version is going to be supported for until Mimir v2.4. When both fields are specified, `active_series_custom_trackers_config` takes precedence over `active_series_custom_trackers`. #2101
 
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