Fix test for escape_some_html().

tests/test_escape_some_html.cpp

@@ -1,5 +1,5 @@
 /*  This file is part of gitea2rss.
- *  Copyright © 2019, 2020 tastytea <tastytea@tastytea.de>
+ *  Copyright © 2019-2021 tastytea <tastytea@tastytea.de>
  *
  *  This program is free software: you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -15,7 +15,9 @@
  */
 
 #include "gitea2rss.hpp"
+
 #include <catch.hpp>
+
 #include <string>
 
 using std::string;
@@ -30,7 +32,8 @@ SCENARIO("escape_some_html() works as expected", "[strings]")
         THEN("The HTML is escaped")
         {
             REQUIRE(escaped
-                    == "&lt;p&gt;&lt;small&gt;.&lt;/small&gt;&lt;/p&gt;");
+                    == "&#x3C;p&#x3E;&#x3C;small&#x3E;.&#x3C;/"
+                       "small&#x3E;&#x3C;/p&#x3E;");
         }
     }
 }