I have this strange problem with using vi as the editor for git commit -a.
Normal flow is: I type git commit -a, vi appears, I enter my commit message, and then :wq to save & exit from vi.
This works fine. However, sometimes I make a typo and instead of :wq I type :Wq (because I use the shift for :). Then, when I correct myself and type :wq again, git gives the following error:
error: There was a problem with the editor 'vi'.
Please supply the message using either -m or -F option.
How can I fix this?