lib-settings: Add comments to settings-history-core.txt

diff --git a/src/lib-settings/settings-history-core.txt b/src/lib-settings/settings-history-core.txt
index 58bb8c586581c7589600976def21e7b37465b63d..1458ebee6d66e60d12eba7f7122ade591b90a708 100644 (file)
--- a/src/lib-settings/settings-history-core.txt
+++ b/src/lib-settings/settings-history-core.txt
@@ -1,3 +1,5 @@
+# default <setting-path> <old-default> <ce-version> <pro-version>
+# rename <old-setting-key> <new-setting-key> <ce-version> <pro-version>
 default        service/doveadm/service_extra_groups    $SET:default_internal_group     2.4.3   3.2.0
 default        service/imap/service_extra_groups       $SET:default_internal_group     2.4.3   3.2.0
 default        service/imap-urlauth-worker/service_extra_groups        $SET:default_internal_group     2.4.3   3.2.0