move "core set debug" to the new style, and remove duplicated

code for the deprecated handler.

On passing fix a long standing bug in find_cli() which would not
find the longest match - this part (trivial, basically
just update matchlen on a match) must go in 1.4 and possibly 1.2 as well.




git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@47662 65c4cc65-6c06-0410-ace0-fbb531ad65f3