protocol: fix missing carriage return

Some of the line breaks lack the \r character, which leads to an
inconsistancy. While our software and even wireshark does ignore
the problem, other third party implementations might reject those
messages.

- Add the missing \r characters to make the message format
  consistant.

Change-Id: I0cd80afae65accd3b4ddc5d82e5d30385879141c
2 files changed