From 31edf64745833870aed2021227530194e8bb55f8 Mon Sep 17 00:00:00 2001
From: Dan Connolly <connolly@agoric.com>
Date: Tue, 26 Oct 2021 11:47:24 -0500
Subject: [PATCH] chore: revert vat label to vNN:name rather than vNN_name

---
 packages/SwingSet/tools/slog-to-causeway.mjs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/SwingSet/tools/slog-to-causeway.mjs b/packages/SwingSet/tools/slog-to-causeway.mjs
index d9accfc6d12..6dadac4c982 100644
--- a/packages/SwingSet/tools/slog-to-causeway.mjs
+++ b/packages/SwingSet/tools/slog-to-causeway.mjs
@@ -168,7 +168,7 @@ async function* slogToCauseway(entries) {
   const anchor = entry => {
     const { crankNum, vatID, deliveryNum } = entry;
     const { name } = vatInfo.get(vatID);
-    const loop = `${vatID}_${name || '???'}`;
+    const loop = `${vatID}:${name || '???'}`;
     return freeze({
       number: crankNum,
       turn: { loop, number: deliveryNum },