Index: tools/PrettyGitLogs.sh
===================================================================
--- tools/PrettyGitLogs.sh	(revision 107b01a853d2fa7848b6015136777f62881c1779)
+++ tools/PrettyGitLogs.sh	(revision 692be4ed6fc582e5f1674917aee7e15687fa5bfb)
@@ -3,12 +3,14 @@
 set -e
 
-GIT_UPDATE="$1/GIT_UPDATE"
-GIT_LOG="$1/GIT_LOG"
-GIT_DIFF="$1/GIT_DIFF"
+GIT="git --git-dir=$1/.git"
+
+GIT_UPDATE="$2/GIT_UPDATE"
+GIT_LOG="$2/GIT_LOG"
+GIT_DIFF="$2/GIT_DIFF"
 
 rm -f ${GIT_UPDATE}  ${GIT_LOG}  ${GIT_DIFF}
 
-GitOldRef=$2
-GitNewRef=$3
+GitOldRef=$3
+GitNewRef=$4