Update integration test (#21)

Author: lukemaurer

test/integration/json_expansion_with_sources.t/run.t

@@ -47,4 +47,4 @@ Test the JSON output in the presence of expanded modules.
   {"header":"<h1>Module <code><span>A.B</span></code><a href=\"../../../src/a.ml.html#module-B\" class=\"source_link\">Source</a></h1>","type":"documentation","uses_katex":false,"breadcrumbs":[{"name":"Index","href":"../../../index.html","kind":"leaf-page"},{"name":"Main","href":"../../index.html","kind":"module"},{"name":"A","href":"../index.html","kind":"module"},{"name":"B","href":"#","kind":"module"}],"toc":[],"source_anchor":"../../../src/a.ml.html#module-B","preamble":"","content":""}
 
   $ cat html/src/a.ml.html.json
-  {"type":"source","breadcrumbs":[{"name":"Index","href":"../index.html","kind":"leaf-page"},{"name":"src","href":"index.html","kind":"page"},{"name":"a.ml","href":"#","kind":"source"}],"global_toc":null,"header":"<h1>Source file <code><span>a.ml</span></code></h1>","content":"<pre class=\"source_container\"><code class=\"source_line_column\"><a id=\"L1\" class=\"source_line\" href=\"#L1\">1</a>\u000A</code><code class=\"source_code\"><span><span id=\"module-B\"><span class=\"MODULE\">module</span> <span class=\"UIDENT\">B</span> <span class=\"EQUAL\">=</span> <span class=\"STRUCT\">struct</span> <span class=\"END\">end</span></span><span class=\"EOL\">\u000A</span></span></code></pre>"}
+  {"type":"source","breadcrumbs":[{"name":"Index","href":"../index.html","kind":"leaf-page"},{"name":"src","href":"index.html","kind":"page"},{"name":"a.ml","href":"#","kind":"source"}],"global_toc":null,"header":"<h1>Source file <code><span>a.ml</span></code></h1>","content":"<pre class=\"source_container\"><code class=\"source_line_column\"><a id=\"L1\" class=\"source_line\" href=\"#L1\">1</a>\u000A</code><code class=\"source_code\"><span><span class=\"MODULE\"><span id=\"module-B\"></span>module</span> <span class=\"UIDENT\">B</span> <span class=\"EQUAL\">=</span> <span class=\"STRUCT\">struct</span> <span class=\"END\">end</span><span class=\"EOL\">\u000A</span></span></code></pre>"}