pt-online-schema-change wrongly thinks columns are trying to be renamed

Description

When the word 'change' appears in a COMMENT string, pt-online-schema-change thinks you're trying to rename columns, even if you're not.

--alter appears to rename these columns:
plus to more
The tool should handle this correctly, but you should test it first because if it fails the renamed columns' data will be lost! Specify --no-check-alter to disable this check and perform the --alter.
`foo`.`bar` was not altered.
--check-alter failed.

Launchpad: https://bugs.launchpad.net/percona-toolkit/+bug/1592072

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Created April 7, 2017 at 6:05 PM
Updated December 12, 2017 at 12:47 PM
Resolved April 13, 2017 at 8:11 PM