diff options
| -rw-r--r-- | lib/PublicInbox/NNTP.pm | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/lib/PublicInbox/NNTP.pm b/lib/PublicInbox/NNTP.pm index 35729f00..12f74c3d 100644 --- a/lib/PublicInbox/NNTP.pm +++ b/lib/PublicInbox/NNTP.pm @@ -423,10 +423,7 @@ sub set_nntp_headers ($$$$$) { $hdr->header_set('Message-ID', $mid0); my @alt = $hdr->header('X-Alt-Message-ID'); my %seen = map { $_ => 1 } (@alt, $mid0); - foreach my $m (@mids) { - next if $seen{$m}++; - push @alt, $m; - } + push(@alt, grep { !$seen{$_}++ } @mids); $hdr->header_set('X-Alt-Message-ID', @alt); } |