Add parameter that appends the MySQL SLAVE STATUS information to the snapshot description.  See details below.  We are using this to quickly audit slave status from snapshot descriptions instead of mounting each snapshot to view the slave status file.  This is working fine for us.  I have NOT tested this with multiple volumes and/or multiple descriptions.

Test environment:  AWS EC2 instance running Debian 7.7 with MySQL 5.5 slave on SSD volume partitioned and formatted with XFS.  MySQL credentials stored in "/root/.my.cnf", AWS credentials stored in "/root/.awssecret".

Example usage:  sudo ec2-consistent-snapshot -d --region us-east-1 --freeze-filesystem /data --mysql --mysql-defaults-file /root/.my.cnf
--mysql-master-status-file /data/mysql-master-info.txt --mysql-master-status-desc --description "$(hostname):
ec2-consistent-snapshot" vol-b1a2d345

Example snapshot description:  "host123.example.net: ec2-consistent-snapshot (master_log_file="mysql-bin.000273", master_log_pos=47451026)"