Fix the output of the JitterBufStats manager event.

(closes issue #13324)
Reported by: srt
Patches:
      13324_missing_nl_in_jitterbufstats_event_2.diff uploaded by srt (license 378)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@138473 65c4cc65-6c06-0410-ace0-fbb531ad65f3