sane.ds: Qualify use of WINE_DEFAULT_DEBUG_CHANNEL

[Andrew Talbot]

With grateful acknowledgement to Marcus Meissner.

-- Andy.
---
Changelog:
    sane.ds: Qualify use of WINE_DEFAULT_DEBUG_CHANNEL.

diff -urN a/dlls/sane.ds/ui.c b/dlls/sane.ds/ui.c
--- a/dlls/sane.ds/ui.c	2006-05-23 13:48:34.000000000 +0100
+++ b/dlls/sane.ds/ui.c	2006-12-28 21:57:07.000000000 +0000
@@ -37,10 +37,10 @@
 #include "wine/debug.h"
 #include "resource.h"
 
-WINE_DEFAULT_DEBUG_CHANNEL(twain);
-
 #ifdef HAVE_SANE
 
+WINE_DEFAULT_DEBUG_CHANNEL(twain);
+
 #define ID_BASE 0x100
 #define ID_EDIT_BASE 0x1000
 #define ID_STATIC_BASE 0x2000