In the Plane
style, all arguments are placed in the same line, separated by a
single space:
(autoload "appload" '("appload"))
The Plane
style is applied to an expression when all the following conditions
are met:
The expression's last character position does not exceed the
value of the Right Text Margin environment option.
The expression's printing length is less than the value of the
Approximate Line Length environment option (that is, last character
position minus starting indentation position is less than this
value).
The expression does not contain embedded comments with Newline
characters.