To amend a commit at the
HEAD of the current branch, run:
git commit --amend -m "Amended message here..."
To rebase a commit that isn’t at the
HEAD of the current branch, you’ll need to do an interactive rebase with the parent of the commit you want to update:
git rebase -i <PARENT_SHA>
So if your history was like this:
…and you want to update the message “Poorly worded commit here…”, you’d type:
git rebase -i 932d7b8
Now change the text in front of the commit you want to change to be
reword and you’ll be prompted to update the commit message:
reword e7fa3ea Poorly worded commit here... pick 932d7b8 Update README
This can come in handy to when you committed something without relevant details like a case number or back story.