Added stub for NtShutdownSystem.

dlls/ntdll/nt.c

@@ -792,6 +792,16 @@ NTSTATUS WINAPI NtPowerInformation(DWORD x1,DWORD x2,DWORD x3,DWORD x4,DWORD x5)
 }
 
 /******************************************************************************
+ *  NtShutdownSystem				[NTDLL.@]
+ *
+ */
+NTSTATUS WINAPI NtShutdownSystem(DWORD x1)
+{
+	FIXME("(0x%08lx),stub\n",x1);
+	return 0;
+}
+
+/******************************************************************************
  *  NtAllocateLocallyUniqueId (NTDLL.@)
  *
  * FIXME: the server should do that

dlls/ntdll/ntdll.spec

@@ -246,7 +246,7 @@
 @ stdcall NtSetTimerResolution(long long ptr)
 @ stdcall NtSetValueKey(long long long long long long)
 @ stdcall NtSetVolumeInformationFile(long ptr ptr long long)
-@ stub NtShutdownSystem
+@ stdcall NtShutdownSystem(long)
 @ stub NtStartProfile
 @ stub NtStopProfile
 @ stdcall NtSuspendThread(long ptr)
@@ -824,7 +824,7 @@
 @ stdcall ZwSetTimerResolution(long long ptr) NtSetTimerResolution
 @ stdcall ZwSetValueKey(long long long long long long) NtSetValueKey
 @ stdcall ZwSetVolumeInformationFile(long ptr ptr long long) NtSetVolumeInformationFile
-@ stub ZwShutdownSystem
+@ stdcall ZwShutdownSystem(long) NtShutdownSystem
 @ stub ZwStartProfile
 @ stub ZwStopProfile
 @ stdcall ZwSuspendThread(long ptr) NtSuspendThread