Update long description indentation for alpha

[tylerslaton]

Signed-off-by: Tyler Slaton tyslaton@redhat.com

Description of the change:
Adjusting the spacing of the alpha subcommands to have appropriate indentation.

Motivation for the change:

The output for the alpha bundle command, for example, looks wonky. Click to see.

$ ./bin/opm alpha bundle --help
The "opm alpha bundle build" command will generate operator
        bundle metadata if needed and build bundle image with operator manifest
        and metadata for a specific version.

        For example: The command will generate annotations.yaml metadata plus
        Dockerfile for bundle image and then build a container image from
        provided operator bundle manifests generated metadata
        e.g. "quay.io/example/operator:v0.0.1".

        After the build process is completed, a container image would be built
        locally in docker and available to push to a container registry.

        $ opm alpha bundle build --directory /test/0.1.0/ --tag quay.io/example/operator:v0.1.0 \
		--package test-operator --channels stable,beta --default stable --overwrite

		Note:
		* Bundle image is not runnable.
		* All manifests yaml must be in the same directory.

Reviewer Checklist

• Implementation matches the proposed design, or proposal is updated to match implementation
• Sufficient unit test coverage
• Sufficient end-to-end test coverage
• Docs updated or added to /docs
• Commit messages sensible and descriptive

[codecov]

Codecov Report

Merging #789 (33fcfca) into master (8d805a2) will not change coverage.
The diff coverage is n/a.

❗ Current head 33fcfca differs from pull request most recent head b0e1aa7. Consider uploading reports for the commit b0e1aa7 to get more accurate results

@@           Coverage Diff           @@
##           master     #789   +/-   ##
=======================================
  Coverage   50.62%   50.62%           
=======================================
  Files         102      102           
  Lines        8898     8898           
=======================================
  Hits         4505     4505           
  Misses       3542     3542           
  Partials      851      851           

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[timflannagan]

/lgtm

[njhale]

/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: njhale, tylerslaton

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