add unmount to finish script on service mount

Author: wiserain

root/etc/s6-overlay/s6-rc.d/mount/finish

@@ -0,0 +1,7 @@
+#!/usr/bin/with-contenv bash
+
+unmount() { if findmnt "$1" | grep -q fuse; then fusermount -uz "$1" ; fi }
+
+# unmount fuse
+unmount /data
+[[ -n "${POOLING_FS:-}" ]] && unmount /cloud