move global args to be applied to version call

[ryanhagen]

Description
Executing helm version will check the server side namespace kube-system. In my particular use case of skaffold, I will not have access to kube-system, therefore, global variable --tiller-namespace will have to be applied to the helm version command, hence this PR.

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[ryanhagen]

@googlebot I fixed it.

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CLAs look good, thanks!

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[codecov]

Codecov Report

Merging #4171 into master will increase coverage by 0.19%.
The diff coverage is 100.00%.

Impacted Files	Coverage Δ
pkg/skaffold/deploy/helm.go	79.12% <100.00%> (-0.72%)	⬇️
pkg/skaffold/deploy/transformations.go	0.00% <0.00%> (-100.00%)	⬇️
cmd/skaffold/app/cmd/debug.go	50.00% <0.00%> (-50.00%)	⬇️
pkg/skaffold/runner/debugging.go	33.33% <0.00%> (-41.67%)	⬇️
pkg/skaffold/update/update.go	34.37% <0.00%> (-25.00%)	⬇️
pkg/skaffold/runner/build_deploy.go	56.12% <0.00%> (-12.70%)	⬇️
pkg/skaffold/util/config.go	68.42% <0.00%> (-10.53%)	⬇️
pkg/skaffold/util/port.go	86.66% <0.00%> (-6.78%)	⬇️
cmd/skaffold/app/cmd/run.go	47.05% <0.00%> (-5.89%)	⬇️
pkg/skaffold/build/buildpacks/lifecycle.go	80.00% <0.00%> (-3.75%)	⬇️
... and 50 more

[balopat]

Thank you for your PR @ryanhagen!
Can you add a testcase please?

[tejal29]

@ryanhagen the travis job is failing due to lint errors. can you please fix ?

[briandealwis]

I don't think this PR is necessary as #4294 causes Skaffold to now use helm version --client to avoid contacting the cluster.

[tejal29]

@ryanhagen Can we close this PR since #4294 is in as @briandealwis mentioned?

[ryanhagen]

@tejal29 sounds good to me.