pop3: fix off-by-one error when handling `EXPIRE 0'

mark_dele already works on the cache offset, so there's no need
to make further adjustments to the offset (as we do with POP3
sequence numbers).

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/PublicInbox/POP3.pm b/lib/PublicInbox/POP3.pm
index bd7dfc65..19fcc434 100644
--- a/lib/PublicInbox/POP3.pm
+++ b/lib/PublicInbox/POP3.pm
@@ -233,7 +233,7 @@ sub retr_cb { # called by git->cat_async via ibx_async_cat
                 my @tmp = split(/^/m, $bdy);
                 $hdr .= join('', splice(@tmp, 0, $top_nr));
         } elsif (exists $self->{expire}) {
-                $self->{expire} .= pack('S', $off + 1);
+                $self->{expire} .= pack('S', $off);
         }
         $$bref =~ s/^\./../gms;
         $$bref .= substr($$bref, -2, 2) eq "\r\n" ? ".\r\n" : "\r\n.\r\n";