Missing newlines added to Set-Cookie line in manager.c

Sean Bright pointed out that we lost a set of newline characters in commit
190349 on a line I had recently changed. Yay for code review on commits.

(issue #17231, #10961)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@263460 65c4cc65-6c06-0410-ace0-fbb531ad65f3