widl: Fix a typo

[Andrew Talbot]

Changelog:
    widl: Fix a typo.

diff -urN a/tools/widl/widltypes.h b/tools/widl/widltypes.h
--- a/tools/widl/widltypes.h	2006-06-02 10:56:44.000000000 +0100
+++ b/tools/widl/widltypes.h	2006-06-24 10:58:00.000000000 +0100
@@ -292,7 +292,7 @@
 
     int allocated;
 
-    DECL_LINK(importlib_t);
+    DECL_LINK(importlib_t)
 };
 
 struct _typelib_t {