[to amend last commit message]
git commit --amend -m <edited-message>
[to amend last commit e.g. add more modifications, edit, re-stage and commit amend]
git add <edited-file>
git commit --amend -m <edited-message>
[to amend last commit message]
git commit --amend -m <edited-message>
[to amend last commit e.g. add more modifications, edit, re-stage and commit amend]
git add <edited-file>
git commit --amend -m <edited-message>