Log Message:
Update databases/percona-toolkit to 3.0.3

v3.0.3
- Sandbox won't start correctly if autocommit=0 in my.cnf
- pt-online-schema-change should imply --no-drop-new-table
- Fixed pt-mext not working with not empty Rsa_public_key
- pt-stalk ps include memory usage outputs
- Recognize comments in ALTER
- pt-online-schema change eats data on adding a unique index. Added
  --[no]use-insert-ignore
- Make DSNs params able to be repeatable
- Made OptionParser to accept repeatable DSNs
- Collect MySQL variables
- Add --skip-check-slave-lag to pt-table-checksum
- Added --skip-check-slave-lag to pt-osc
- Added support for slave status in pt-stalk

v3.0.2
- pt-mongodb tools add support for SSL connections
- pt-mongodb-summary Cannot get security settings when connected to a
  mongod instance
- pt-mongodb-query-digest Change the default sort order to -count
  (descending)
- pt-mysql-summary password doesn't support '&' and '#' symbols
- Update Makefile for mongodb tools
- Collect information about locks and transactions using P_S (Thanks
  Agustin Gallego)
- pt-stalk top CPU usage is useless
- Fix pt-mongodb-query-digest query ID (Thanks Kamil Dziedzic)
- pt-online-schema-change makes duplicate rows in _t_new for UPDATE t
  set pk=0 where pk=1
- Fixed PT tests
- pt-table-checksum ignores slave-user and slave-password
- pt-table-checksum fails if a database is dropped while the tool is
  running

v3.0
- Improved fix (protocol parser fix): error when parsing tcpdump
  capture with pt-query-digest
- pt-osc: Fails with duplicate key in table for self-referencing
  (Thanks Amiel Marqeta)
- pt-summary exists with an error (Thanks Marcelo Altmann)
- pt-mongodb-summary
- pt-mongodb-query-digest

v2.2.20
- pt-slave-restart fails on MariaDB 10.0.13 (gtid_mode confusion)
- pt-show-grants fails against MariaDB10+
- pt-query-digest numbers in table or column names converted to
  question marks (--preserve-embedded-numbers)
- pt-online-schema-change misses data.  Fixed sort order for ENUM
  fields
- pt-online-schema-change doesn't apply underscores to foreign keys
  individually
- pt-upgrade fails with SELECT INTO
- pt-slave-restart --config does not recognize = as separator
- Added pause to NibbleIterator
- --data-dir parameter in order to create the table on a different
  partition
- with pt-table-checksum automatically exclude checking schemas named
  percona, percona_schema
- pt-online-schema-change Added --remove-data-dir feature
- Fixed several typos in the doc (Thanks Dario Minnucci)
- Add Transparent huge pages info to pt-summary
- Add Memory management library to pt-mysql-summary