0.39.0

• Added one event that is triggered when there's only one match

  # Automatically select the only match
  seq 10 | fzf --bind one:accept

• Added --track option that makes fzf track the current selection when the
  result list is updated. This can be useful when browsing logs using fzf with
  sorting disabled.

  git log --oneline --graph --color=always | nl |
      fzf --ansi --track --no-sort --layout=reverse-list

• If you use --listen option without a port number fzf will automatically
  allocate an available port and export it as $FZF_PORT environment
  variable.

  # Automatic port assignment
  fzf --listen --bind 'start:execute-silent:echo $FZF_PORT > /tmp/fzf-port'
  
  # Say hello
  curl "localhost:$(cat /tmp/fzf-port)" -d 'preview:echo Hello, fzf is listening on $FZF_PORT.'

• A carriage return and a line feed character will be rendered as dim ␍ and
  ␊ respectively.

  printf "foo\rbar\nbaz" | fzf --read0 --preview 'echo {}'

• fzf will stop rendering a non-displayable character as a space. This will
  likely cause less glitches in the preview window.

  fzf --preview 'head -1000 /dev/random'

• Bug fixes and improvements