Make manager response to "Action: events" finish with empty line

(closes issue #16275)
Reported by: vnovy
Patches: 
      manager.c.diff uploaded by vnovy (license 922)



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@232576 65c4cc65-6c06-0410-ace0-fbb531ad65f3