The peer polling interval is an exponent; treat it as such.

The peer polling interval is an exponent; treat it as such.

RFC 1119 says

	Peer Poll Interval (peer.ppoll, pkt.ppoll): This is a signed
	    integer indicating the minimum interval between messages
	    sent by the peer, in seconds as a power of two.  For
	    instance, a alue of six indicates a minimum interval of 64
	    seconds.

so print both the raw value and 2^{raw value}, showing the latter.

Patch from Debian bug 686276.

Reviewed-By: Guy Harris <[email protected]>