title: How to apply spans to the whole Spannable string
body: <p>Everywhere I see only these ways:</p>
  <pre><code>text[0..3] = AlignmentSpan.Standard(Layout.Alignment.ALIGN_OPPOSITE)
  </code></pre>
  <p>or using setSpan, but there I must only use some limits(start and end indexes).</p>
  <p>Then I tried this:</p>
  <pre><code>text[text.indices] = AlignmentSpan.Standard(Layout.Alignment.ALIGN_OPPOSITE)
  </code></pre>
  <p>It works, but it excludes the last character.</p>
  <p>How to apply spans to the whole Spannable string?</p>