title: Doxygen usage of \includedoc
body: <p>the <a href="http://www.doxygen.nl/manual/commands.html#cmdincludedoc" rel="nofollow noreferrer">Doxygen documentation</a> says about <strong>\includedoc</strong>  <em>&quot;This command works the same way as <strong>\include</strong>, but it will include the content of the file as if it were at the place where this command is called.&quot;</em></p>
  <p>So I set up <code>EXAMPLE_PATH = includepages</code> (Doxyfile) and created a file named <code>test.dox</code> in <code>includepages</code> sub folder.</p>
  <p>To ensure that usages is correct this is the content of <code>test.dox</code>:</p>
  <pre><code>/*!
   *  THIS IS A TEST
   */
   THIS IS AN OTHER TEST
  </code></pre>
  <p>Here is the way I do Include this page:</p>
  <pre><code> *  \include test.dox
   *
   *  \includedoc test.dox
  </code></pre>
  <p>This will result in:</p>
  <p><img src="https://i.stack.imgur.com/fmmuS.png" alt="Screenshot Doxygen result" /></p>
  <p>As you see <code>\include test.dox</code> works like expected. The none doxygen part of the file <code>test.dox</code> is given (<code>THIS IS AN OTHER TEST</code>).
  But instead of printing <code>THIS IS A TEST</code> <code>\includedoc test.dox</code> prints the file name?
  I can't figure out whats wrong.</p>
  <p>Thanks for helping<br>
  Tom</p>
  <h3>System information (SuSE Leap 42.2)</h3>
  <pre><code># uname -a
  Linux twa 4.4.74-18.20-default #1 SMP Fri Jun 30 19:01:19 UTC 2017 (b5079b8) x86_64 x86_64 x86_64 GNU/Linux
  # doxygen --version
  1.8.11
  # dot -V
  dot - graphviz version 2.38.0 (20140413.2041)
  </code></pre>