work around some (harmless) g++ warnings about possibly uninitalized variables

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@59482 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/html/m_tables.cpp

@@ -769,7 +769,7 @@ TAG_HANDLER_BEGIN(TABLE, "TABLE,TR,TD,TH")
                 m_WParser->OpenContainer();
 
                 // the header should be rendered in bold by default
-                int boldOld wxDUMMY_INITIALIZE(0);
+                int boldOld = 0;
                 if ( isHeader )
                 {
                     boldOld = m_WParser->GetFontBold();