Some shell scripts doesn't use the log facility to improve readibility

Issue #171 (closed) and MR #175 (closed) have introduced a facility to improve logs produced by shell scripts.

But some shell scripts doesn't use that facility:

• addons/filepizza/templates/scripts/deploy
• admin-tools/node-problem-detector/templates/scripts/deploy
• templates/scripts/backup.sh
• templates/scripts/restore.sh