Remove redundant ';' at the end of line.

diff --git a/include/debugtools.h b/include/debugtools.h
index d09d0eb..ab286aa 100644
--- a/include/debugtools.h
+++ b/include/debugtools.h
@@ -46,7 +46,7 @@
 #define __WINE_DBG_LOG(args...) \
     wine_dbg_log( __dbcl, __dbch, __FUNCTION__, args); } } while(0)
 
-#define __PRINTF_ATTR(fmt,args) __attribute__((format (printf,fmt,args)));
+#define __PRINTF_ATTR(fmt,args) __attribute__((format (printf,fmt,args)))
 
 #else  /* __GNUC__ */