my @ibxs = PublicInbox::Admin::resolve_inboxes(\@ARGV, $opt);
PublicInbox::AdminEdit::check_editable(\@ibxs);
-my $data = do { local $/; scalar <STDIN> };
+my $data = do { local $/; <STDIN> };
$data =~ s/\A[\r\n]*From [^\r\n]*\r?\n//s;
my $n_purged = 0;