Better error message

diff --git a/merge.pl b/merge.pl
index 53d41e110f791db404a951f05fce58a21fcf4895..65695af3719b63827d06ebd2a9666eb09392658d 100755 (executable)
--- a/merge.pl
+++ b/merge.pl
@@ -106,7 +106,7 @@ sub merge_with_csv {
 
   # Work out the headers for the CSV file.
   my $headers = $csv->getline($IN);
-  die "Nothing in $vars!" unless @$headers;
+  die "Nothing in $vars!" unless defined $headers && @$headers;
   $csv->column_names(@$headers);
   
   if ($tmplData->{'attachment_col'}) {