Asciidoc: variadic template dots rendered as \u2026 instead of as individual dots

[anarthal]

When a triple dot is found in a code block, it's rendered as the Unicode character \u2026 (…) instead of as three individual dot characters (...). I think this causes the syntax highlighter to get confused.

For example:

namespace boost::mysql {

/// A variadic template.
template <class... Args>
void f(Args...)
{
}

}  // namespace boost::mysql

Rendered as:

Generated asciidoc:

[#boost-mysql-f]
= xref:boost.adoc[boost]::xref:boost/mysql.adoc[mysql]::f
:relfileprefix: ../../
:mrdocs:


A variadic template.

== Synopsis


Declared in `<https://github.com/boostorg/mysql/blob/master/include/boost/repro.hpp#L4[boost/repro.hpp]>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class... Args>
void
f(Args...);
----



[.small]#Created with https://www.mrdocs.com[MrDocs]#

Relevant HTML fragment:

<pre class="highlightjs highlight"><code class="language-cpp hljs" data-lang="cpp"><span class="hljs-function"><span class="hljs-keyword">template</span>&lt;class…​ Args&gt;
<span class="hljs-keyword">void</span>
<span class="hljs-title">f</span><span class="hljs-params">(Args…​)</span></span>;</code></pre>

MrDocs
    C++ Documentation Tool
    version: 0.0.3
    build: 93d5d102c39b093d402ae3f95302fd734c8de616
    built with LLVM 20.0.0git

This is likely a side effect of enabling substitutions in the code block.