dockertest.dockercmd: Print stdin when provided

It's hard to know, what happened while executing a command, when you
don't know the provided stdin. This patch appends `<<< "..."` after the
docker execute message in case it's non-zero. I used "%r" to make it
easier to discover, that it's not part of the executed command plus to
decrease size of the log.

Example:
Execute /usr/bin/docker -D run --name test_rvSj fedora bash  <<< 'ls /\nexit\n'
Execute /usr/bin/docker -D run --name test_rvSj fedora ls /

Signed-off-by: Lukáš Doktor <ldoktor@redhat.com>
Fix docker info. test w/ error-factor

BZ 1093021

Signed-off-by: Chris Evich <root@dockertest.localdomain>
Merge pull request #364 from cevich/info_fudge

Fix docker info. test w/ error-factor
dockertest: Fix reaction to missing subsubtests variable in config.

Signed-off-by: Jiří Župka <jzupka@redhat.com>
dockertest: fix docker daemon to works properly for systemd.

try to stop service.socket to be sure that service will not start.

Signed-off-by: Jiří Župka <jzupka@redhat.com>
docker_daemon: Adds restart tests.

Signed-off-by: Jiří Župka <jzupka@redhat.com>
docker_daemon: Adds documentation for restart tests.

Signed-off-by: Jiří Župka <jzupka@redhat.com>
Merge pull request #255 from jzupka/daemon-restart

Daemon restart
subtests.docker_cli.kill: Reflect changes in uncatchable signals

Uncatchable signals are now documented in `man docker run`.
Change `go_lang_bad_signals` test to check man pages and verify that
these signals are not handled (in case golang starts working again)

Signed-off-by: Lukáš Doktor <ldoktor@redhat.com>
Merge pull request #368 from ldoktor/kill

subtests.docker_cli.kill: Reflect changes in uncatchable signals
Merge pull request #305 from ldoktor/stdin

dockertest.dockercmd: Print stdin when provided