Do not shift an empty list of arguments

[audio-cdr-video.git] / cdr-dvdrw-tools / cdrkit / dvdrec-data

diff --git a/cdr-dvdrw-tools/cdrkit/dvdrec-data b/cdr-dvdrw-tools/cdrkit/dvdrec-data
index 550ca4f737d0795df2b11c23d0151c8dc3d1df53..388e09e305e61f02257e95b0384e3e965ad1c7f3 100755 (executable)
--- a/cdr-dvdrw-tools/cdrkit/dvdrec-data
+++ b/cdr-dvdrw-tools/cdrkit/dvdrec-data
@@ -4,8 +4,10 @@
 
 . .config
 
-label="$1"
-shift
+if [ -n "$label" ]; then
+   label="$1"
+   shift
+fi
 
 if [ -z "$label" ]; then
    label="`guess_label.py`"