[gnumeric] xlsx: fix xmlns parsing problem for sheet relation ids.

[Morten Welinder <mortenw src gnome org>]

commit 33f851d140f8a3967cd1a600b31ab1908234aab0
Author: Morten Welinder <terra gnome org>
Date:   Wed Jun 17 13:16:00 2015 -0400

    xlsx: fix xmlns parsing problem for sheet relation ids.

 NEWS                      |    1 +
 plugins/excel/xlsx-read.c |    2 +-
 2 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/NEWS b/NEWS
index 2af7e29..8305c4a 100644
--- a/NEWS
+++ b/NEWS
@@ -31,6 +31,7 @@ Morten:
        * Fix xlsx problem with import of header/footer.  [#750853]
        * Fix xls save problem with characters outside codepage.  [#750856]
        * Fix named expression problem.  [#751056]
+       * Fix xlsx namespace problem.  [#751120]
 
 --------------------------------------------------------------------------
 Gnumeric 1.12.22
diff --git a/plugins/excel/xlsx-read.c b/plugins/excel/xlsx-read.c
index 2ecd658..3aa3358 100644
--- a/plugins/excel/xlsx-read.c
+++ b/plugins/excel/xlsx-read.c
@@ -4058,7 +4058,7 @@ GSF_XML_IN_NODE_FULL (START, WORKBOOK, XL_NS_SS, "workbook", GSF_XML_NO_CONTENT,
   GSF_XML_IN_NODE (WORKBOOK, CUSTOMWVIEWS, XL_NS_SS, "customWorkbookViews", GSF_XML_NO_CONTENT, NULL, NULL),
     GSF_XML_IN_NODE (CUSTOMWVIEWS, CUSTOMWVIEW , XL_NS_SS, "customWorkbookView", GSF_XML_NO_CONTENT, NULL, 
NULL),
 GSF_XML_IN_NODE (CUSTOMWVIEW, EXTLST, XL_NS_SS, "extLst", GSF_XML_2ND, NULL, NULL),
-  GSF_XML_IN_NODE (WORKBOOK, SHEETS,    XL_NS_SS, "sheets", GSF_XML_NO_CONTENT, NULL, NULL),
+  GSF_XML_IN_NODE_FULL (WORKBOOK, SHEETS, XL_NS_SS, "sheets", GSF_XML_NO_CONTENT, FALSE, TRUE, NULL, NULL, 
0),
     GSF_XML_IN_NODE (SHEETS, SHEET,     XL_NS_SS, "sheet", GSF_XML_NO_CONTENT, &xlsx_sheet_begin, NULL),
   GSF_XML_IN_NODE (WORKBOOK, FGROUPS,   XL_NS_SS, "functionGroups", GSF_XML_NO_CONTENT, NULL, NULL),
     GSF_XML_IN_NODE (FGROUPS, FGROUP,   XL_NS_SS, "functionGroup", GSF_XML_NO_CONTENT, NULL, NULL),