avoid GCC warning "suggest braces around empty body in an ‘else’ statement"

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@67410 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk/menu.cpp

@@ -601,8 +601,10 @@ void wxMenuItem::SetBitmap(const wxBitmap& bitmap)
     if (m_kind == wxITEM_NORMAL)
         m_bitmap = bitmap;
     else
+    {
         wxFAIL_MSG("only normal menu items can have bitmaps");
     }
+}
 
 void wxMenuItem::Check( bool check )
 {

src/gtk/notebook.cpp

@@ -418,8 +418,10 @@ bool wxNotebook::InsertPage( size_t position,
                 pageData->m_image, false, false, m_padding);
         }
         else
+        {
             wxFAIL_MSG("invalid notebook imagelist");
         }
+    }
 
     /* set the label text */
     pageData->m_label = gtk_label_new(wxGTK_CONV(wxStripMenuCodes(text)));