changed default value for long datetime, zh_CN locale data

* Added a space to formatindex 46, to make it look nicer;
* Long datetime default changed to formatindex 47.

Change-Id: I50e05f1a4432ab4373fa0034a390658b59775f0b
Reviewed-on: https://gerrit.libreoffice.org/13650Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

i18npool/source/localedata/data/zh_CN.xml

@@ -221,10 +221,10 @@
       <FormatCode>[HH]"时"MM"分"SS"秒"00</FormatCode>
     </FormatElement>
     <!-- Date_Time formats. Index range is from 46 to 47. -->
-    <FormatElement msgid="DateTimeFormatskey4" default="true" type="long" usage="DATE_TIME"  formatindex="46">
-      <FormatCode>YYYY"年"MM"月"D"日"HH"时"MM"分"SS"秒"</FormatCode>
+    <FormatElement msgid="DateTimeFormatskey4" default="false" type="long" usage="DATE_TIME"  formatindex="46">
+      <FormatCode>YYYY"年"MM"月"D"日" HH"时"MM"分"SS"秒"</FormatCode>
     </FormatElement>
-    <FormatElement msgid="DateTimeFormatskey3" default="false" type="long" usage="DATE_TIME"  formatindex="47">
+    <FormatElement msgid="DateTimeFormatskey3" default="true" type="long" usage="DATE_TIME"  formatindex="47">
       <FormatCode>YYYY/MM/DD HH:MM:SS</FormatCode>
     </FormatElement>
     <FormatElement msgid="DateTimeFormatskey1" default="false" type="long" usage="DATE_TIME"  formatindex="58">