resolves #355 collapse all whitespace when normalizing (PR #438)
resolves #355 collapse all whitespace when normalizing (PR #438)

- collapse all whitespace, not just endlines, when normalizing text
asciidoctor/asciidoctor-pdf,dsisnero/asciidoctor-pdf,mojavelinux/asciidoctor-pdf,dsisnero/asciidoctor-pdf,Hextremist/asciidoctor-pdf,mojavelinux/asciidoctor-pdf,asciidoctor/asciidoctor-pdf,Hextremist/asciidoctor-pdf