Add OS/Arch information in the krew version CLI output

[tony-yang]

Add OS/Arch information in the krew version CLI output to help with diagnostics.
No unit test added since the function we are calling is already well tested.

Updated the KrewVersionTest integration test to convert the stdout to go map to leverage go-cmp for better test assertion. We now can report failure when new output is added to the krew version command.

Fixes #470

[tony-yang]

Reference issue: #470

[tony-yang]

/assign @soltysh

[ahmetb]

/unassign @soltysh

@tony-yang do you mind adding a test to TestKrewVersion* ?

[tony-yang]

/unassign @soltysh

@tony-yang do you mind adding a test to TestKrewVersion* ?

Sure, will update the PR later

[ahmetb]

Thanks.

[codecov-io]

Codecov Report

Merging #484 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #484   +/-   ##
=======================================
  Coverage   56.47%   56.47%           
=======================================
  Files          19       19           
  Lines         926      926           
=======================================
  Hits          523      523           
  Misses        350      350           
  Partials       53       53

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[tony-yang]

Hi, @ahmetb I updated the integration test.
Just wondering, should I use the assign function for this project (since I saw you removed it earlier)? Thanks.

[ahmetb]

Which assign function are you referring to?

[corneliusweig]

Hi @tony-yang, /assign is fine, you only tagged the wrong person 😉. But it's usually not necessary in krew as we stay on top of PRs and issues.

[tony-yang]

Hi @tony-yang, /assign is fine, you only tagged the wrong person 😉. But it's usually not necessary in krew as we stay on top of PRs and issues.

Thanks Cornelius, good to know.

[ahmetb]

/lgtm
/approve
ty!

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ahmetb, tony-yang

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