oleaut32: Tweak a comment to make it more explicit.

[Francois Gouget]

---

Well, in fact it's just that my script does not notice that this is in a 
comment and thinks someone tried to do a binary and with NULL which 
makes no sense. But the comment really means to say VT_NULL anyway...
(and it makes my life simpler)

 dlls/oleaut32/variant.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/dlls/oleaut32/variant.c b/dlls/oleaut32/variant.c
index 909cf8a..37965f8 100644
--- a/dlls/oleaut32/variant.c
+++ b/dlls/oleaut32/variant.c
@@ -3009,7 +3009,7 @@ HRESULT WINAPI VarAnd(LPVARIANT left, LPVARIANT right, LPVARIANT result)
     {
         /*
          * Special cases for when left variant is VT_NULL
-         * (NULL & 0 = NULL, NULL & value = value)
+         * (VT_NULL & 0 = VT_NULL, VT_NULL & value = value)
          */
         if (leftvt == VT_NULL)
         {
-- 
1.6.2.4