Add some debug output

.githooks/post-checkout

@@ -1,5 +1,5 @@
 #!/bin/bash -
-echo "POST-CHECKOUT IN $PWD"
+echo "POST-CHECKOUT IN $PWD" >> /tmp/post_checkout.txt
 # echo "PREV-HEAD=$1"
 # echo "CURR-HEAD=$2"
 # echo "BRANCH-CHECKOUT=$3"