- ${config_attr}= Set Variable If "${ns_config}" != "${EMPTY}" --config '${ns_config}' ${EMPTY}
- ${sshkeys_attr}= Set Variable If "${publickey}" != "${EMPTY}" --ssh_keys ${publickey} ${EMPTY}
- ${config_file_attr}= Set Variable If "${config_file}" != "${EMPTY}" --config_file '${config_file}' ${EMPTY}
+ ${config_attr}= Set Variable If '${ns_config}'!='${EMPTY}' --config '${ns_config}' ${EMPTY}
+ ${sshkeys_attr}= Set Variable If '${publickey}'!='${EMPTY}' --ssh_keys ${publickey} ${EMPTY}
+ ${config_file_attr}= Set Variable If '${config_file}'!='${EMPTY}' --config_file '${config_file}' ${EMPTY}