writerfilter: fix include guard

Change-Id: I8c5c8a4e8fbb6e6a2e955c4f544786a2256e6342

writerfilter/source/ooxml/factoryinc.py

@@ -14,8 +14,8 @@ import sys
 
 def createInclude(model):
     print("""
-#ifndef OOXML_FACTORY_GENERATED_HXX
-#define OOXML_FACTORY_GENERATED_HXX
+#ifndef INCLUDED_OOXML_FACTORY_GENERATED_HXX
+#define INCLUDED_OOXML_FACTORY_GENERATED_HXX
 
 namespace writerfilter {
 namespace ooxml {
@@ -40,7 +40,7 @@ namespace ooxml {
     print("""/// @endcond
 }}
 
-#endif // OOXML_FACTORY_GENERATED_HXX""")
+#endif // INCLUDED_OOXML_FACTORY_GENERATED_HXX""")
 
 
 modelPath = sys.argv[1]