LPARAM and WPARAM have different types on Win32 and Win64

Solve it by casting to the larger of the two, i.e. 64-bit.

win/rfb_win32/Clipboard.cxx

@@ -96,7 +96,8 @@ Clipboard::processMessage(UINT msg, WPARAM wParam, LPARAM lParam) {
   switch (msg) {
 
   case WM_CHANGECBCHAIN:
-    vlog.debug("change clipboard chain (%x, %x)", wParam, lParam);
+    vlog.debug("change clipboard chain (%I64x, %I64x)",
+               (long long)wParam, (long long)lParam);
     if ((HWND) wParam == next_window)
       next_window = (HWND) lParam;
     else if (next_window != 0)

win/rfb_win32/WMShatter.cxx

@@ -37,7 +37,8 @@ rfb::win32::IsSafeWM(HWND window, UINT msg, WPARAM wParam, LPARAM lParam) {
     break;
   };
   if (!result) {
-    vlog.info("IsSafeWM: 0x%x received 0x%x(%u, %lu) - not safe", window, msg, wParam, lParam);
+    vlog.info("IsSafeWM: 0x%p received 0x%x(%I64u, %I64u) - not safe",
+              window, msg, (long long)wParam, (long long)lParam);
   }
   return result;
 }