[PATCH 4/4] www: mail_diff: add missing tag

[Eric Wong]

Found by tidy(1) while dealing with other stuff.
---
 lib/PublicInbox/MailDiff.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/PublicInbox/MailDiff.pm b/lib/PublicInbox/MailDiff.pm
index 89284e39..e4e262ef 100644
--- a/lib/PublicInbox/MailDiff.pm
+++ b/lib/PublicInbox/MailDiff.pm
@@ -56,7 +56,7 @@ sub next_smsg ($) {
        $self->{smsg} = $over ? $over->next_by_mid(@{$self->{next_arg}})
                        : $ctx->gone('over');
        if (!$self->{smsg}) {
-               $ctx->write($ctx->_html_end);
+               $ctx->write('</pre>', $ctx->_html_end);
                return $ctx->close;
        }
        PublicInbox::DS::requeue($self) if $ctx->{env}->{'pi-httpd.async'};