Watermark header addition in Exim does not work

[Lasantha Marian]

Skipped content of type multipart/alternative-------------- next part --------------
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>   $this->{addmshmac} = 0;
>   $this->{mshmac} = "";
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<       $global::MS->{mta}->AppendHeader($this, $mshmacheader, "$expiry\@$hash");
---
>       $this->{addmshmac} = 1;
>       $this->{mshmac} = "$expiry\@$hash";
1875a1879,1887
>   
>   # Add watermark header if chosen to do so.
>   if ($this->{addmshmac}) {
>     my $mshmacheader = MailScanner::Config::Value('mshmacheader', $this);
>     my $mshmac = $this->{mshmac};
> 
>     $global::MS->{mta}->AddMultipleHeader($this, 'mshmacheader', $mshmac, ', ');
>   }
> 
4843a4856,4864
> 
>   # Add watermark header if chosen to do so.
>   if ($this->{addmshmac}) {
>     my $mshmacheader = MailScanner::Config::Value('mshmacheader', $this);
>     my $mshmac = $this->{mshmac};
> 
>     $global::MS->{mta}->AddMultipleHeader($this, 'mshmacheader', $mshmac, ', ');
>   }
> 
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> 
>   # Add watermark header if chosen to do so.
>   if ($this->{addmshmac}) {
>     my $mshmacheader = MailScanner::Config::Value('mshmacheader', $this);
>     my $mshmac = $this->{mshmac};
> 
>     $global::MS->{mta}->AddMultipleHeader($this, 'mshmacheader', $mshmac, ', ');
>   }
>