fix syntax for perltidy

mmdebstrap

@@ -3510,7 +3510,8 @@ sub main() {
             # add the sorted list associated with each key to the respective
             # list of hooks
             foreach my $hook (keys %scripts) {
-                push @{ $options->{"${hook}_hook"} }, (sort @{$scripts{$hook}});
+                push @{ $options->{"${hook}_hook"} },
+                  (sort @{ $scripts{$hook} });
             }
         },
         # Sometimes --simulate fails even though non-simulate succeeds because