add more debugging

debian/aegir-hostmaster.postinst

@@ -20,6 +20,10 @@ set -e
 # Source debconf library.
 . /usr/share/debconf/confmodule
 
+if [ ! -z "$DEBUG" ]; then
+    set -x
+fi
+
 VARLIB="/var/aegir"
 
 case "$1" in