add info defined-ness check

diff --git a/scripts/process.in b/scripts/process.in
index c2f4ddf9372b5dd5a8c86f8bb846b7c0117d26c6..ae1aa39a43cd6cd7650062458a9a2fe46f25ff34 100755 (executable)
--- a/scripts/process.in
+++ b/scripts/process.in
@@ -786,7 +786,7 @@ if (not exists $header{'x-debbugs-no-ack'} and
          $t_h{pr_message} = "ack${infod} $ref";
          $t_h{reply_to}   = "$ref\@$gEmailDomain";
          $extra_vars->{refreplyto} = "$ref\@$gEmailDomain";
-         $t_h{subject}    = length($info)?
+         $t_h{subject}    = (defined $info and length($info))?
               "$gBug#$ref: Info received ($subject)" :
               "$gBug#$ref: Acknowledgement ($subject)";
      }