oleaut32: Do not use wide character constants.

dlls/oleaut32/oleaut.c

@@ -266,7 +266,7 @@ BSTR WINAPI SysAllocStringLen(const OLECHAR *str, unsigned int len)
      * string.
      */
     stringBuffer = (WCHAR*)newBuffer;
-    stringBuffer[len] = L'\0';
+    stringBuffer[len] = '\0';
 
     return (LPWSTR)stringBuffer;
 }

dlls/oleaut32/typelib.c

@@ -1636,7 +1636,7 @@ static void MSFT_ReadValue( VARIANT * pVar, int offset, TLBContext *pcx )
             MSFT_Read(ptr, size, pcx, DO_NOT_SEEK);/* read string (ANSI) */
             V_BSTR(pVar)=SysAllocStringLen(NULL,size);
             /* FIXME: do we need a AtoW conversion here? */
-            V_UNION(pVar, bstrVal[size])=L'\0';
+            V_UNION(pVar, bstrVal[size])='\0';
             while(size--) V_UNION(pVar, bstrVal[size])=ptr[size];
             TLB_Free(ptr);
 	}