copr-backend: more verbose machine termination

roles/copr/backend/templates/resalloc/vm-delete.j2

@@ -2,6 +2,8 @@
 
 die(){ echo >&2 "!! $*"; exit 1; }
 
+set -x
+
 test -z "$RESALLOC_NAME" && die "no vm specified, empty \$RESALLOC_NAME variable"
 
 # Detect the IP we should be talking to.
@@ -31,6 +33,7 @@ case $RESALLOC_POOL_ID in
     ;;
 copr_osuosl_*)
     # Delegate the rest of this task to an OpenStack specific script.
+    set +x
     . "{{ provision_directory }}/.rc-osuosl.sh"
     exec resalloc-openstack-delete --delete-everything "$RESALLOC_NAME"
     exit 1