Could not execute editor

The following command

git config --global core.editor /usr/bin/vim

fixes it.

[edit]

Now I see that someone already posted it in the comments. Hope its still helpful for some blind folks like me.

Yesterday was just one of those days. On a lark, I decided to set the full path to vi (e.g. /usr/bin/vi) rather than just the executable. Now everything works. I have to admit that I don't get it since vi is perfectly executable on its own (my $EDITOR env variable is also set to vi), but it's working and my technical karma hasn't been so great lately so maybe I just shouldn't question the deities will...