Fix rt(c)p set debug ip taking wrong argument

Also clean up some coding errors.

(closes issue #17469)
Reported by: wdoekes
Patches:
      astsvn-rtp-set-debug-ip.patch uploaded by wdoekes (license 717)
Tested by: wdoekes, pabelanger



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@273233 65c4cc65-6c06-0410-ace0-fbb531ad65f3