Summary

Proposed changes:

• Remove misleading -a flag in git commit command, since we just added a specific file to the staging area with git add (my personal anecdotal reference: https://gist.github.com/mkcor/5733a25575bf0ca61d4947d9837bb43f).

Checklist

• The changes only affect or contain one recipe.
• The changes are according to contribution guidelines.
• The changes can be merged into the target branch without conflicts.