admin: add '# ' prefix for progress messages

It's more consistent with TAP output and hopefully puts
users at ease in case they don't understand the meaning
of a message.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/PublicInbox/Admin.pm b/lib/PublicInbox/Admin.pm
index a17a632c..11ea8f83 100644
--- a/lib/PublicInbox/Admin.pm
+++ b/lib/PublicInbox/Admin.pm
@@ -320,7 +320,7 @@ sub progress_prepare ($;$) {
         } else {
                 $opt->{verbose} ||= 1;
                 $dst //= *STDERR{GLOB};
-                $opt->{-progress} = sub { print $dst @_ };
+                $opt->{-progress} = sub { print $dst '# ', @_ };
         }
 }