munge-sdp: restore CRLF (#1246)
munge-sdp: restore CRLF (#1246)

restores the CRLF in munge-sdp which apparently gets lost when putting the text into the textarea. Found while testing
  https://chromium-review.googlesource.com/c/chromium/src/+/1953635
this will make it easier to detect actual changes (if that ever happens)

Remember that both LF and CRLF is valid in SDP!
webrtc/samples,webrtc/samples