Saving viewport contents should not include wrapping newlines if wrap is on

[Leo Robinovitch]

Describe the bug
Saving viewport contents when visual wrapping is on includes newlines in the saved content. It should not include wrapping newlines.

To reproduce
In a viewport with wrapping on and long enough lines to wrap around, save the contents with ctrl + s. You'll see the newlines are saved as well.

Expected behavior
Newlines for visual wrapping purposes should not be present in the saved content.