reworked mk_archive.sh, few ajustment

init.sh

@@ -24,9 +24,9 @@ set -o pipefail
 set -o errtrace
 
 # set -e : exit the script if any statement returns a non-true return value
-#set -o errexit
+set -o errexit
 
-# set +u : allow undeclared variables
+# set +u : allow undeclared variables (configuration files don't need to be complete)
 set +o nounset
 
 # We want english messages