Clarified message when comment adding failed

Change-Id: I40b85e7ecaec786ee3a8d50a8ca99dd066554122
diff --git a/src/main/java/com/googlesource/gerrit/plugins/its/phabricator/PhabricatorItsFacade.java b/src/main/java/com/googlesource/gerrit/plugins/its/phabricator/PhabricatorItsFacade.java
index 94ad847..c7e3fc6 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/its/phabricator/PhabricatorItsFacade.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/its/phabricator/PhabricatorItsFacade.java
@@ -50,7 +50,7 @@
     try {
       conduit.maniphestEdit(task_id, comment, null, null);
     } catch (ConduitException e) {
-      throw new IOException("Could not update message for task " + task_id, e);
+      throw new IOException("Could not add comment for task " + task_id, e);
     }
     logger.atFine().log("Added comment %s to bug %s", comment, task_id);
   }