Fix system prune cmd user message with options

[jmguzik]

[NO TESTS NEEDED]

Signed-off-by: Jakub Guzik [email protected]

/kind bug

1. Podman before fix (the same message):

$ podman system prune 

WARNING! This will remove:
        - all stopped containers
        - all stopped pods
        - all dangling images
        - all build cache
Are you sure you want to continue? [y/N] ^C
$ podman system prune -a

WARNING! This will remove:
        - all stopped containers
        - all stopped pods
        - all dangling images
        - all build cache
Are you sure you want to continue? [y/N] ^C
$ podman system prune -a --volumes 

WARNING! This will remove:
        - all stopped containers
        - all volumes not used by at least one container
        - all stopped pods
        - all dangling images
        - all build cache
Are you sure you want to continue? [y/N] ^C
$ podman system prune --volumes 

WARNING! This will remove:
        - all stopped containers
        - all volumes not used by at least one container
        - all stopped pods
        - all dangling images
        - all build cache
Are you sure you want to continue? [y/N] 

2. Docker:

$ docker system prune
WARNING! This will remove:
  - all stopped containers
  - all networks not used by at least one container
  - all dangling images
  - all dangling build cache

Are you sure you want to continue? [y/N] ^C
$ docker system prune -a
WARNING! This will remove:
  - all stopped containers
  - all networks not used by at least one container
  - all images without at least one container associated to them
  - all build cache

Are you sure you want to continue? [y/N] ^C
$ docker system prune -a --volumes 
WARNING! This will remove:
  - all stopped containers
  - all networks not used by at least one container
  - all volumes not used by at least one container
  - all images without at least one container associated to them
  - all build cache

Are you sure you want to continue? [y/N] ^C
$ docker system prune --volumes 
WARNING! This will remove:
  - all stopped containers
  - all networks not used by at least one container
  - all volumes not used by at least one container
  - all dangling images
  - all dangling build cache

Are you sure you want to continue? [y/N] ^C

3. podman after fix:

$ bin/podman system prune 
WARNING! This will remove:
        - all stopped containers
        - all networks not used by at least one container
        - all dangling images
        - all dangling build cache

Are you sure you want to continue? [y/N] ^C
$ bin/podman system prune -a
WARNING! This will remove:
        - all stopped containers
        - all networks not used by at least one container
        - all images without at least one container associated to them
        - all build cache

Are you sure you want to continue? [y/N] ^C
$ bin/podman system prune -a --volumes 
WARNING! This will remove:
        - all stopped containers
        - all networks not used by at least one container
        - all volumes not used by at least one container
        - all images without at least one container associated to them
        - all build cache

Are you sure you want to continue? [y/N] ^C
$ bin/podman system prune  --volumes   
WARNING! This will remove:
        - all stopped containers
        - all networks not used by at least one container
        - all volumes not used by at least one container
        - all dangling images
        - all dangling build cache

Are you sure you want to continue? [y/N] ^C

I kept original tabs in podman, but the message content is now the same as in docker.

[Luap99]

LGTM

[openshift-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jmguzik, Luap99

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[jwhonce]

/lgtm