INT 2F - NETWORK REDIRECTOR - COMMIT REMOTE FILE

	AX = 1107h
	ES:DI -> filled-in SFT (assumed to point at SDA's current SFT field)
Return: CF set on error
	    AX = DOS error code (see #01680 at INT 21/AH=59h/BX=0000h)
	CF clear if successful
	    all buffers for file flushed
	    directory entry updated
	ES:DI must be preserved
Desc:	perform all the buffer flushing, directory updates, etc. that would be
	  performed on a file close, but do not decrement the SFT reference
	  count
Note:	this function is called by the DOS 3.1+ kernel
SeeAlso: INT 21/AH=68h,INT 21/AX=5D01h