XTAPI calling convention is not supported on variadic routines

xtoskrnl/includes/rtli.h

@@ -312,7 +312,7 @@ XTSTATUS
 RtlpWriteWideCharacter(IN PRTL_PRINT_CONTEXT Context,
                        IN WCHAR Character);
 
-XTAPI
+XTCDECL
 XTSTATUS
 RtlpWriteWideStringCustomValue(IN PRTL_PRINT_CONTEXT Context,
                                IN PCWSTR Format,

xtoskrnl/rtl/widestr.c

@@ -1345,7 +1345,7 @@ RtlpWriteWideCharacter(IN PRTL_PRINT_CONTEXT Context,
  *
  * @since XT 1.0
  */
-XTAPI
+XTCDECL
 XTSTATUS
 RtlpWriteWideStringCustomValue(IN PRTL_PRINT_CONTEXT Context,
                                IN PCWSTR Format,