wineps: Handle EMR_FLATTENPATH record in spool files.

dlls/wineps.drv/printproc.c

@@ -1549,6 +1549,7 @@ static int WINAPI hmf_proc(HDC hdc, HANDLETABLE *htable,
     case EMR_CREATEBRUSHINDIRECT:
     case EMR_SETARCDIRECTION:
     case EMR_CLOSEFIGURE:
+    case EMR_FLATTENPATH:
     case EMR_SELECTCLIPPATH:
     case EMR_EXTSELECTCLIPRGN:
         return PlayEnhMetaFileRecord(data->pdev->dev.hdc, htable, rec, n);