ChangeCodeOwnersFactory: Fix error message

Signed-off-by: Edwin Kempin <ekempin@google.com>
Change-Id: If5d2c8a8ef8d1e355771600ccfa46c1eab96e98f
diff --git a/java/com/google/gerrit/plugins/codeowners/api/impl/ChangeCodeOwnersFactory.java b/java/com/google/gerrit/plugins/codeowners/api/impl/ChangeCodeOwnersFactory.java
index 5c7535f..22b73a5 100644
--- a/java/com/google/gerrit/plugins/codeowners/api/impl/ChangeCodeOwnersFactory.java
+++ b/java/com/google/gerrit/plugins/codeowners/api/impl/ChangeCodeOwnersFactory.java
@@ -64,7 +64,7 @@
     try {
       return changesCollection.parse(TopLevelResource.INSTANCE, IdString.fromDecoded(changeId));
     } catch (Exception e) {
-      throw asRestApiException("Cannot retrieve revision", e);
+      throw asRestApiException("Cannot retrieve change", e);
     }
   }
 }