Use __printflike.

when printing URLs, don't use VIS_HTTPSTYLE as it doesn't
really do what I expected.

ensure that the buffer is nul-terminated, otherwise printing an
empty string will show junk..

Add in the new Service Discovery Protocol API as announced previously in
http://mail-index.netbsd.org/tech-userlevel/2009/02/27/msg001764.html

in lib/libbluetooth, add new SDP functions and bump m

Add in the new Service Discovery Protocol API as announced previously in
http://mail-index.netbsd.org/tech-userlevel/2009/02/27/msg001764.html

in lib/libbluetooth, add new SDP functions and bump minor version
replace usr.sbin/sdpd with new version
install sdp.h and sdp.3 from lib/libbluetooth

(Don't remove libsdp yet since some programs still refer to it)

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