Fix Bug#33781

* lisp/net/tramp-cache.el (tramp-connection-properties):
* lisp/net/tramp-sh.el (tramp-remote-path)
(tramp-remote-process-environment, tramp-sh-extra-args):
Reinsert autoload cookie.  (Bug#33781)

* test/lisp/net/tramp-tests.el: Do not require tramp-sh before
changing tramp-remote-path.
1 job for master in 2 seconds (queued for 1 second)
Status Job ID Name Coverage
failed #319


Name Stage Failure
test Test There has been a runner system failure, please try again
Running with gitlab-runner 11.4.2 (cf91d5e1)
on gitlab-runner-docker cff9d373
Using Docker executor with image debian:stretch ...
Pulling docker image debian:stretch ...
Using docker image sha256:4879790bd60d439cfe39c063660eef7af525d5f6f1cbb701a14c7cfc11cbfcf7 for debian:stretch ...
ERROR: Job failed (system failure): Error response from daemon: open /var/run/docker/libcontainerd/containerd/8a020c9e95865a514b3fd99f90b9bb1e9cf1f7b1d3a956394ffcf877a29db018/init/shim-log.json: no such file or directory (executor_docker.go:1015:0s)