from: streamer
to: shutdown
evidence:
 - file: "streamer/streamer.go"
   contains "    "github.com/uber/storagetapper/shutdown""

from: streamer
to: shutdown
evidence:
 - file: "streamer/buffer.go"
   contains "    "github.com/uber/storagetapper/shutdown""

from: streamer
to: shutdown
evidence:
 - file: "streamer/snapshot.go"
   contains "    "github.com/uber/storagetapper/shutdown""