diff -rupN tar-1.25/scripts/backup.in tar-1.25-patched/scripts/backup.in
--- tar-1.25/scripts/backup.in	2010-01-22 18:15:11.000000000 +0100
+++ tar-1.25-patched/scripts/backup.in	2010-11-22 09:12:50.529577200 +0100
@@ -69,7 +69,7 @@ do
       optarg=$opt
   fi
   case $option in
-  --l=*|--le=*|--lev=*|--leve=*|--level=*)
+  -l=*|--l=*|--le=*|--lev=*|--leve=*|--level=*)
          DUMP_LEVEL=$optarg
 	 ;;
   -l|--l|--le|--lev|--leve|--level)