evil-org-> and evil-org-< require count argument

[ian-h-chamberlain]

Attempting to use << or >>, I saw this message and nothing would be indented/dedented:

evil-org->: Wrong number of arguments: (0 . 0), 1 [2 times]

After I looked into it I found that > and < operators have a required count argument:

(evil-define-operator evil-org-> (beg end count)
;; ...
)

Changing them to optional seems to fix the problem, although I don't know if it's 100% correct:

(evil-define-operator evil-org-> (beg end &optional count)
;; ...
)

I'm not sure if this package is still maintained, but even if not hopefully this helps someone else who was frustrated by this keybind not working!