@@ -23,6 +23,7 @@

 # Print the commands being run so that we can see the command that triggers

 # an error.  It is also useful for following along as the install occurs.

 set -o xtrace

+export PS4='+(${BASH_SOURCE}:${LINENO}): ${FUNCNAME[0]:+${FUNCNAME[0]}(): }'

 # Make sure custom grep options don't get in the way

 unset GREP_OPTIONS

@@ -240,6 +241,7 @@ echo "$STACK_USER ALL=(root) NOPASSWD:ALL" >$TEMPFILE

 # see them by forcing ``PATH``

 echo "Defaults:$STACK_USER secure_path=/sbin:/usr/sbin:/usr/bin:/bin:/usr/local/sbin:/usr/local/bin" >> $TEMPFILE

 echo "Defaults:$STACK_USER !requiretty" >> $TEMPFILE

+echo "Defaults env_keep += PS4" >> $TEMPFILE

 chmod 0440 $TEMPFILE

 sudo chown root:root $TEMPFILE

 sudo mv $TEMPFILE /etc/sudoers.d/50_stack_sh