Git core.editor on Mac OS X

Question

How can I change the core.editor of Git to start a program such as Smultron?

All I can find are examples for terminal editors or TextMate.

Answer 1

You can open a file in Smultron with open

Example

git config core.editor "open -nW -a Smultron"

EDIT

Added the -nW parameters to have a new Smultron open and wait for it to close