Fix a misspelled parameter name in TaxTest

[akiojalehto]

Description

Found a misspelled parameter name in \Magento\Weee\Test\Unit\Model\TaxTest::testGetWeeeAmountExclTax

Contribution checklist

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds on Travis CI are green)

[ihor-sviziev]

@akiojalehto could you prepare 1 pull request instead of 16 with all your changes? It will decrease overhead for processing each separate PR by magento team.

[akiojalehto]

Sorry I didn't mean to commit so much, but kept finding more of these.. And then I thought that these are in separated contexts that it might make sense to keep these separated.

Don't have anymore for now, if you can process these it might be easier. I will collect these kind of commits in the future for a single PR if I find more.

[ihor-sviziev]

@akiojalehto your pull requests actually have 1 context: fixing misspellings in the core. Currently is will not be easy to process 16 PRs, please merge all your changes into 1 PR and it will be processed.

Thank you!

PS: Here is example of PR that had big list of changes that was successfully processed without any issues: #11235

[okorshenko]

Hi @akiojalehto
Please let us know if you can merge all misspellings Prs into one

[akiojalehto]

Sure, I'll try to get it done today

[okorshenko]

I'm working on this right now

[okorshenko]

All done. Working on PR review and testing

[akiojalehto]

Nice job, thanks! Sorry for the trouble.

[okorshenko]

No problem. Thank you for code cleanup!