(defun gnus-message-make-user-agent (&optional include-mime-info max-column)
"Return user-agent info.
INCLUDE-MIME-INFO the optional first argument if it is non-nil and the variable
- `mime-edit-user-agent-value' is exists, the return value will include it.
+ `mime-edit-user-agent-value' exists, the return value will include it.
MAX-COLUMN the optional second argument if it is specified, the return value
will be folded up in the proper way."
(let ((user-agent (if (and include-mime-info