return "" instead of () from english_join

diff --git a/Debbugs/Common.pm b/Debbugs/Common.pm
index e269ffc84fa69b8f2fe6462cfe24b0ffac98b95c..a4d7cf109136c99f370b40fd9b3b1515e38c02c4 100644 (file)
--- a/Debbugs/Common.pm
+++ b/Debbugs/Common.pm
@@ -491,7 +491,7 @@ Joins list properly to make an english phrase.
 sub english_join {
      my ($normal,$last,@list) = @_;
      if (@list <= 1) {
-         return @list?$list[0]:();
+         return @list?$list[0]:'';
      }
      my $ret = $last . pop(@list);
      $ret = join($normal,@list) . $ret;