XML Reporter closes tag and flushes stream at end of TestCase and Section tags.

This fixes an issue where XML reports on stdout are broken by printf statements

include/internal/catch_xmlwriter.hpp

@@ -211,6 +211,13 @@ namespace Catch {
             return *this;
         }
 
+        void ensureTagClosed() {
+            if( m_tagIsOpen ) {
+                m_os << ">" << std::endl;
+                m_tagIsOpen = false;
+            }
+        }
+
     private:
         XmlWriter( XmlWriter const& );
         void operator=( XmlWriter const& );
@@ -219,13 +226,6 @@ namespace Catch {
             m_os << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
         }
 
-        void ensureTagClosed() {
-            if( m_tagIsOpen ) {
-                m_os << ">" << std::endl;
-                m_tagIsOpen = false;
-            }
-        }
-
         void newlineIfNecessary() {
             if( m_needsNewline ) {
                 m_os << std::endl;