1 files changed, 3 insertions, 3 deletions
diff --git a/lib/PublicInbox/LeiMailDiff.pm b/lib/PublicInbox/LeiMailDiff.pm
index 4f3a4608..b21a0c36 100644
--- a/lib/PublicInbox/LeiMailDiff.pm
+++ b/lib/PublicInbox/LeiMailDiff.pm
@@ -76,7 +76,7 @@ sub input_eml_cb { # used by PublicInbox::LeiInput::input_fh
  
  sub lei_mail_diff {
          my ($lei, @argv) = @_;
-        $lei->{opt}->{'in-format'} //= 'eml';
+        $lei->{opt}->{'in-format'} //= 'eml' if !grep(/\A[a-z0-9]+:/i, @argv);
          my $self = bless {}, __PACKAGE__;
          $self->prepare_inputs($lei, \@argv) or return;
          my $isatty = -t $lei->{1};
@@ -94,7 +94,7 @@ sub lei_mail_diff {
  no warnings 'once';
  *net_merge_all_done = \&PublicInbox::LeiInput::input_only_net_merge_all_done;
  
-package PublicInbox::ContentDigestDbg;
+package PublicInbox::ContentDigestDbg; # cf. PublicInbox::ContentDigest
  use strict;
  use v5.10.1;
  use Data::Dumper;
@@ -103,7 +103,7 @@ sub new { bless { dig => Digest::SHA->new(256), fh => $_[1] }, __PACKAGE__ }
  
  sub add {
          $_[0]->{dig}->add($_[1]);
-        print { $_[0]->{fh} } Dumper($_[1]) or die "print $!";
+        print { $_[0]->{fh} } Dumper([split(/^/sm, $_[1])]) or die "print $!";
  }
  
  sub hexdigest { $_[0]->{dig}->hexdigest; }