--- a/lib/update.updates	Tue Mar 20 14:15:22 2012 +0200
+++ b/lib/update.updates	Tue Mar 20 14:24:58 2012 +0200
@@ -155,7 +155,7 @@
 function do_commit {
     local msg=$1
 
-    indent "    " hg_diff
+    [ $LOG_DIFF ] && indent "    " hg_diff
 
     hg_commit "$msg"
 }