From Paolo Abeni:

From Paolo Abeni:

	The USB pseudo-header in DLT_USB_LINUX captures is in the host
	byte order for the machine on which the capture was done.  When
	reading a capture file, convert the pseudo-header to the host
	byte order of the host on which the file is being read.

	There's a 64-bit quantity in that pseudo-header; move the 64-bit
	byte-swap macro from the DAG code to pcap-int.h for use by other
	code.