Merge pull request #18043 from tianon/freebsd-package-name

Fix "./docker" package name on freebsd

docker/daemon_freebsd.go

@@ -1,6 +1,6 @@
 // +build daemon
 
-package docker
+package main
 
 // notifySystem sends a message to the host when the server is ready to be used
 func notifySystem() {