message: fix winspool printer devmode definition
  the printer_info field for PRINTER_INFO_9W was incorrectly using a non-wide character set for pDevMode
diff: @@ -160,7 +160,7 @@ STRUCT!{struct PRINTER_INFO_9A {
  pub type PPRINTER_INFO_9A = *mut PRINTER_INFO_9A;
  pub type LPPRINTER_INFO_9A = *mut PRINTER_INFO_9A;
  STRUCT!{struct PRINTER_INFO_9W {
  - pDevMode: LPDEVMODEA,
  + pDevMode: LPDEVMODEW,
  }}
  pub type PPRINTER_INFO_9W = *mut PRINTER_INFO_9W;
  pub type LPPRINTER_INFO_9W = *mut PRINTER_INFO_9W;
  