don't return error if we can't load English catalog, it is normal

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_4_BRANCH@24796 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/intl.cpp

@@ -1593,6 +1593,11 @@ bool wxLocale::AddCatalog(const wxChar *szDomain)
   else {
     // don't add it because it couldn't be loaded anyway
     delete pMsgCat;
+    
+    // it's OK to not load English catalog, the texts are embedded in
+    // the program:
+    if (m_strShort.Mid(0, 2) == wxT("en"))
+        return TRUE;
 
     return FALSE;
   }