diff --git a/auxil/btest b/auxil/btest
index a0f317ec29..8ce78fe388 160000
--- a/auxil/btest
+++ b/auxil/btest
@@ -1 +1 @@
-Subproject commit a0f317ec29461f7035d27b9f4f0cab389cc345a4
+Subproject commit 8ce78fe388fbb583b47e1a9ea956c94cb9b5be6d
diff --git a/testing/btest/Baseline/scripts.base.utils.email/output b/testing/btest/Baseline/scripts.base.utils.email/output
index 6955547403..936a5ffed2 100644
--- a/testing/btest/Baseline/scripts.base.utils.email/output
+++ b/testing/btest/Baseline/scripts.base.utils.email/output
@@ -1,3 +1,4 @@
+### BTest baseline data generated by btest-diff. Do not edit. Use "btest -U/-u" to update. Requires BTest >= 0.63.
 one@example.com
 [one@example.com, two@example.com, three@example.com, one@example.com]
 {
@@ -22,6 +23,6 @@ two@example.com
 john.smith@email.com
 [john.smith@email.com, jane.doe@email.com]
 {
-john.smith@email.com
+john.smith@email.com,
 jane.doe@email.com
 }