Fix markup of DatePeriod::createFromIso8601string()

Author: kocsismate

reference/datetime/dateperiod/createfromiso8601string.xml

@@ -7,10 +7,10 @@
 
  <refsect1 role="description">
   &reftitle.description;
-  <methodsynopsis>
+  <methodsynopsis role="DatePeriod">
    <modifier>public</modifier> <modifier>static</modifier> <type>static</type><methodname>DatePeriod::createFromISO8601String</methodname>
    <methodparam><type>string</type><parameter>specification</parameter></methodparam>
-   <methodparam choice="opt"><type>int</type><parameter>options</parameter></methodparam>
+   <methodparam choice="opt"><type>int</type><parameter>options</parameter><initializer>0</initializer></methodparam>
   </methodsynopsis>
   <para>
    Creates a new DatePeriod object from an ISO8601 string, as specified with
@@ -25,8 +25,7 @@
     <term><parameter>specification</parameter></term>
     <listitem>
      <para>
-      A subset of the <link
-      xlink:href="&url.iso-8601.repeating_intervals;">ISO 8601 repeating
+      A subset of the <link xlink:href="&url.iso-8601.repeating_intervals;">ISO 8601 repeating
       interval specification</link>.
      </para>
      <para>