fixed Mutect2 typo #227

[szilvajuhos]

nf-core/sarek pull request

PR checklist

• fixing Typo for Mutect2 #227
• rudimentary test works
• Ensure the test suite passes (nextflow run . -profile test,docker).
• Make sure your code lints (nf-core lint .).
• CHANGELOG.md is updated

[szilvajuhos]

For the record:

git fetch upstream
git checkout master
git reset --hard upstream/dev
git push origin master --force 
git branch mutect2typo

The --force was missing to get rid of my obsolete commits

[maxulysse]

@szilvajuhos sorry, I merged #233 so the dev version of the container no longer contain bwa but bwa-mem2, so CI is failing
Can you please update your branch?

I remember I could do that from github, but can't seem to find that anymore