f315fee5 follow-up: fix tdf#109310 unit test

The test should guarantee presense of w:val attribute of w:rStyle element.
Turns out we must not use w: namespace before attribute name; likely it
is true when attribute namespace is the same as of its element.

Change-Id: I28e2936b51f039473326c6debf4b5559e2baf24c
Reviewed-on: https://gerrit.libreoffice.org/70612
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>

sw/qa/extras/ooxmlexport/ooxmlexport9.cxx

@@ -488,7 +488,9 @@ DECLARE_OOXMLEXPORT_TEST(testTdf109310_endnoteStyleForMSO, "tdf109310_endnoteSty
     xmlDocPtr pXmlDoc = parseExport("word/endnotes.xml");
     if (!pXmlDoc)
         return;
-//    assertXPath(pXmlDoc, "/w:endnotes/w:endnote[@w:id='2']/w:p/w:r[1]/w:rPr/w:rStyle", "w:val"); // what does it test?
+    // Check w:rStyle element has w:val attribute - note that w: is not specified for attribute
+    assertXPath(pXmlDoc, "/w:endnotes/w:endnote[@w:id='2']/w:p/w:r[1]/w:rPr/w:rStyle", "val",
+                "EndnoteCharacters");
 }
 
 DECLARE_OOXMLEXPORT_TEST(testTdf103389, "tdf103389.docx")