--- lpstat.orig	2015-10-13 10:03:38.701906004 +0200
+++ lpstat	2015-10-13 10:00:04.261905735 +0200
@@ -145,6 +145,7 @@
         exit 2;
     }
     @jobs = ( <LPSTAT> );
+    $n_jobs = scalar @jobs;
     $jobs{$printer}=$n_jobs || 0;
 }