Fixed typo in docstring
Author: tkburis
Pull request: yes

# What does this PR do?

Missing 'to' in 'pad the inputs the maximum length'.

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Comments:
_The documentation is not available anymore as the PR was closed or merged._

Hi @sgugger,

I've looked at the CircleCI test and it seems like it failed because of a timeout when installing from PIP, not because of styling. Is there any way to rerun the tests?

Indeed, everything is green on re-launch. Thanks for your contribution!