oleaut32: Fix a signed/unsigned mismatch.

[Francois Gouget]

---

PICTYPE_UNINITIALIZED is defined as -1, but picType is an unsigned 
integrer. Hopefully the compiler does not mind, but still...

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

diff --git a/dlls/oleaut32/olepicture.c b/dlls/oleaut32/olepicture.c
index a7dc158..ca46d01 100644
--- a/dlls/oleaut32/olepicture.c
+++ b/dlls/oleaut32/olepicture.c
@@ -545,7 +545,7 @@ static HRESULT WINAPI OLEPictureImpl_get_hPal(IPicture *iface,
     return E_POINTER;
 
   switch (This->desc.picType) {
-    case PICTYPE_UNINITIALIZED:
+    case (UINT)PICTYPE_UNINITIALIZED:
     case PICTYPE_NONE:
       *phandle = 0;
       hres = S_FALSE;
-- 
1.4.4.4