INT 21 - Novell NetWare - CLOSE SEMAPHORE                                       
	AX = F26Fh subfn 01h
	CX = length of request packet in bytes
	DX = 0000h (no reply packet)
	DS:SI -> request packet (see #02483)
	ES:DI ignored
Return: AX = status (see #02860 at INT 2F/AX=7A20h/BX=0000h)
SeeAlso: AH=F2h"Novell",AX=F26Fh/SF=00h,AX=F26Fh/SF=03h,AX=F220h/SF=04h


Format of NetWare "Close Semaphore" request packet:
Offset	Size	Description	(Table 02483)
 00h	BYTE	01h (subfunction "Close Semaphore")
 01h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	semaphore handle
SeeAlso: #02286