Log Message:
musicpd: update to 0.20.18.

ver 0.20.18 (2018/02/24)
* input
  - curl: allow authentication methods other than "Basic"
* decoder
  - flac: improve seeking precision
* fix gapless CUE song transitions
* Android, Windows
  - enable the NFS storage plugin

ver 0.20.17 (2018/02/11)
* output
  - alsa: fix crash bug with 8 channels
* mixer
  - alsa: fix rounding error at volume 0
* fix real-time and idle scheduling with Musl
* Android
  - fix compatibility with Android 4.0