ForwardedIndexChangeHandler: fix misleading log message

The log message said "seems too old compared to the event timestamp"
but isChangeUpToDate() also checks SHA visibility, which is the more
likely reason for returning false after the precondition reorder.
Update the message to not assume a particular cause.

Change-Id: Ideafff252fad45b5e824763b391949c8857ccf45

src/main/java/com/ericsson/gerrit/plugins/highavailability/forwarder/ForwardedIndexChangeHandler.java

diff --git a/src/main/java/com/ericsson/gerrit/plugins/highavailability/forwarder/ForwardedIndexChangeHandler.java b/src/main/java/com/ericsson/gerrit/plugins/highavailability/forwarder/ForwardedIndexChangeHandler.java
index 102ee77..f0bc802 100644
--- a/src/main/java/com/ericsson/gerrit/plugins/highavailability/forwarder/ForwardedIndexChangeHandler.java
+++ b/src/main/java/com/ericsson/gerrit/plugins/highavailability/forwarder/ForwardedIndexChangeHandler.java
@@ -86,8 +86,7 @@
       if (changeNotes.isPresent()) {
         if (!checker.isChangeUpToDate(indexEvent)) {
           log.atFine().log(
-              "Change %s seems too old compared to the event timestamp (event-Ts=%s >>"
-                  + " change-Ts=%s)",
+              "Change %s is not yet up to date with the event (event=%s, change=%s)",
               id, indexEvent, checker);
           return false;
         }