Remove newline insertion from pager. (closes #3835)

Remove newline insertion from pager. (closes #3835)

The window patches commited now manually move to the next line, so
there is no need to insert newlines for that purpose.

The newlines also goof windows placed to the right of the pager, as is
the case for the (currently external) sidebar-on-the-right
functionality.

Thanks to Richard Russon for the original patch and help testing the
revised patch.