Applying the changes of a specific commit from one branch to another.

Applying the changes of a specific commit from one branch to another.

Scenario:

- branched off master and created story123 branch.
- made three separate change commits to story123:
	- 'fixed bug123'
	- 'fixed bug456'
	- 'fixed bug789'

- now I realized that I need to apply only one commit 'fixed bug789' to
master

Question: What's the best way to go about doing this?

Thanks for the help!

NewToGit