get rid of undefined warning

diff --git a/syncshadowdb b/syncshadowdb
index 6c6479e1989a20aeb8c62c6f60a2572def37d8ec..100580942806e4cc5ce9f0a6f6bc2ab2a4943173 100755 (executable)
--- a/syncshadowdb
+++ b/syncshadowdb
@@ -35,7 +35,7 @@ sub sillyness {
 }
 
 my $verbose = 0;
-if ($ARGV[0] eq '-v') {
+if ($#ARGV > 0 && $ARGV[0] eq '-v') {
     $verbose = 1;
 }
 $| = 1;