While pt-table-checksum seems to work well for most tables, a few of the big ones get this:
Error checksumming table mydb.mytable: Redundant argument in printf at /usr/bin/pt-table-checksum line 8106.
Versions:
pt-table-checksum 2.2.11
Servers (MariaDB acting as both slave to MySQL and master to another MariaDB, happens in both cases):
mysql Ver 14.14 Distrib 5.6.36, for Linux (x86_64) using EditLine wrapper mysql Ver 15.1 Distrib 10.1.24-MariaDB, for Linux (x86_64) using readline 6.3