use string ref for Email::Simple->new

Email::Simple is slightly faster this way, and Email::MIME
and PublicInbox::MIME both wrap that.

diff --git a/lib/PublicInbox/Import.pm b/lib/PublicInbox/Import.pm
index 8406c9e268866fc23f9c4758f511994a964cfeea..e20c6e031f6fb14a64373637a631f8e1ff9edc93 100644 (file)
--- a/lib/PublicInbox/Import.pm
+++ b/lib/PublicInbox/Import.pm
@@ -122,7 +122,7 @@ sub check_remove_v1 {
        $n = read($r, my $lf, 1);
        defined($n) or die "read final byte of cat-blob failed: $!";
        die "bad read on final byte: <$lf>" if $lf ne "\n";
-       my $cur = PublicInbox::MIME->new($buf);
+       my $cur = PublicInbox::MIME->new(\$buf);
        my $cur_s = $cur->header('Subject');
        $cur_s = '' unless defined $cur_s;
        my $cur_m = $mime->header('Subject');