Merge component 'cli' from git@github.com:docker/cli 19.03

Author: GordonTheTurtle

components/cli/docs/reference/commandline/context_create.md

@@ -66,7 +66,7 @@ sourced from the file `/home/me/my-kube-config`:
 $ docker context create \
     --docker host=unix:///var/run/docker.sock \
     --kubernetes config-file=/home/me/my-kube-config \
-    my-context 
+    my-context
 ```
 
 ### Create a context based on an existing context
@@ -76,7 +76,7 @@ an existing context. The example below creates a new context named `my-context`
 from the existing context `existing-context`:
 
 ```bash
-$ docker context create --from existing-context my-context 
+$ docker context create --from existing-context my-context
 ```
 
 If the `--from` option is not set, the `context` is created from the current context:

components/cli/docs/reference/commandline/login.md

@@ -53,7 +53,7 @@ $ cat ~/my_password.txt | docker login --username foo --password-stdin
 `docker login` requires user to use `sudo` or be `root`, except when:
 
 1.  connecting to a remote daemon, such as a `docker-machine` provisioned `docker engine`.
-2.  user is added to the `docker` group.  This will impact the security of your system; the `docker` group is `root` equivalent.  See [Docker Daemon Attack Surface](https://docs.docker.com/engine/security/security/#docker-daemon-attack-surface) for details.
+2.  user is added to the `docker` group.  This will impact the security of your system; the `docker` group is `root` equivalent.  See [Docker Daemon Attack Surface](https://docs.docker.com/engine/security/#docker-daemon-attack-surface) for details.
 
 You can log into any public or private repository for which you have
 credentials.  When you log in, the command stores credentials in

components/cli/man/src/login.md

@@ -6,7 +6,7 @@ do not specify a `SERVER`, the command uses Docker's public registry located at
 `docker login` requires user to use `sudo` or be `root`, except when:
 
 1.  connecting to  a remote daemon, such as a `docker-machine` provisioned `docker engine`.
-2.  user is added to the `docker` group.  This will impact the security of your system; the `docker` group is `root` equivalent.  See [Docker Daemon Attack Surface](https://docs.docker.com/engine/security/security/#/docker-daemon-attack-surface) for details.
+2.  user is added to the `docker` group.  This will impact the security of your system; the `docker` group is `root` equivalent.  See [Docker Daemon Attack Surface](https://docs.docker.com/engine/security/#docker-daemon-attack-surface) for details.
 
 You can log into any public or private repository for which you have
 credentials.  When you log in, the command stores encoded credentials in