This issue must be resolved...anyway +1 for the script.
mkdir /root/letsencrypt-fix
cd /root/letsencrypt-fix
wget https://d4twhgtvn0ff5.cloudfront.net/caa-rechecking-incident-affected-serials.txt.gz
gzip -d caa-rechecking-incident-affected-serials.txt.gz
MYSQL_PWD=`cat...