Include wx/math.h according to precompiled headers of wx/wx.h (with other minor cleaning).

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@39745 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/tabg.cpp

@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        tabg.cpp
+// Name:        src/generic/tabg.cpp
 // Purpose:     Generic tabbed dialogs
 // Author:      Julian Smart
 // Modified by:
@@ -13,7 +13,7 @@
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
-#pragma hdrstop
+    #pragma hdrstop
 #endif
 
 #if wxUSE_TAB_DIALOG
@@ -22,13 +22,13 @@
     #include "wx/settings.h"
     #include "wx/intl.h"
     #include "wx/dcclient.h"
+    #include "wx/math.h"
 #endif
 
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdarg.h>
 
-#include "wx/math.h"
 #include "wx/tab.h"
 #include "wx/listimpl.cpp"