Make capitalization of XMLReader::XML consistent (#4124)

Author: nielsdos

appendices/migration80/incompatible.xml

@@ -1645,7 +1645,7 @@ echo file_get_contents('http://example.org', false, $ctx);
   <title>XMLReader</title>
 
   <para>
-   <methodname>XMLReader::open</methodname> and <methodname>XMLReader::xml</methodname> are now
+   <methodname>XMLReader::open</methodname> and <methodname>XMLReader::XML</methodname> are now
    static methods. They can still be called as instance methods, but inheriting classes need to declare them
    as static if they override these methods.
   </para>

reference/xmlreader/xmlreader/close.xml

@@ -30,7 +30,7 @@
   <para>
    <simplelist>
     <member><methodname>XMLReader::open</methodname></member>
-    <member><methodname>XMLReader::xml</methodname></member>
+    <member><methodname>XMLReader::XML</methodname></member>
    </simplelist>
   </para>
  </refsect1>

reference/xmlreader/xmlreader/open.xml

@@ -101,7 +101,7 @@
   &reftitle.seealso;
   <para>
    <simplelist>
-    <member><methodname>XMLReader::xml</methodname></member>
+    <member><methodname>XMLReader::XML</methodname></member>
     <member><methodname>XMLReader::close</methodname></member>
    </simplelist>
   </para>

reference/xmlreader/xmlreader/setparserproperty.xml

@@ -15,7 +15,7 @@
   <para>
    Set parser options. The options must be set after
    <methodname>XMLReader::open</methodname> or 
-   <methodname>XMLReader::xml</methodname> are called and before 
+   <methodname>XMLReader::XML</methodname> are called and before
    the first <methodname>XMLReader::read</methodname> call.
   </para>
  </refsect1>