[xml] xmlTextWriterSetIndent question

["taihei goi" <taihei sis saison co jp>]

Hi.
I'm using libxml2.6.5 on redhat7.3.
I have searched ML archive and CVS but I could not find the solution,so I
post here.

Problem is:
I have used xmlwriter api and received an output differ from my expectation.
The output file(end tag of element <B>) is not properly indented.

Output of xmlWriter api :
<?xml version="1.0"?>
<A>
    <B>
        <C ID="1"/>
</B>
</A>

My expectation is:
<?xml version="1.0"?>
<A>
    <B>
        <C ID="1"/>
    </B>
</A>

Question is:
Is this the intended behaviour or a bug ?

Thanks.
taihei

Source Code:
#include <libxml/xmlwriter.h>

int main(void) {
        xmlTextWriterPtr writer;
        writer = xmlNewTextWriterFilename("test.xml", 0);
        xmlTextWriterSetIndent(writer,1);
        xmlTextWriterSetIndentString(writer,"    ");
        xmlTextWriterStartDocument(writer, NULL, NULL, NULL);
        xmlTextWriterStartElement(writer, "A");
        xmlTextWriterStartElement(writer, "B");
        xmlTextWriterStartElement(writer, "C");
        xmlTextWriterWriteAttribute(writer, "ID", "1");
        xmlTextWriterEndElement(writer); //end of C
        xmlTextWriterEndElement(writer); //end of B
        xmlTextWriterEndElement(writer); //end of A
        xmlTextWriterEndDocument(writer);
        xmlFreeTextWriter(writer);
        return 0;
}