Index: trunk/scripts/git-hooks/sub/update
===================================================================
--- trunk/scripts/git-hooks/sub/update	(revision 2802)
+++ trunk/scripts/git-hooks/sub/update	(revision 2813)
@@ -14,5 +14,5 @@
 fi
 
-if [ -z "$ref" -o -z "$oldrev" -o -z "$newrev" ]; then
+if [ -z "$ref" ] || [ -z "$oldrev" ] || [ -z "$newrev" ]; then
         echo "Usage: $0 <ref> <oldrev> <newrev>" >&2
         exit 1
Index: trunk/scripts/git-hooks/super/update
===================================================================
--- trunk/scripts/git-hooks/super/update	(revision 2802)
+++ trunk/scripts/git-hooks/super/update	(revision 2813)
@@ -14,5 +14,5 @@
 fi
 
-if [ -z "$ref" -o -z "$oldrev" -o -z "$newrev" ]; then
+if [ -z "$ref" ] || [ -z "$oldrev" ] || [ -z "$newrev" ]; then
         echo "Usage: $0 <ref> <oldrev> <newrev>" >&2
         exit 1