add XSLT_PATH prefix with environment override

[sarnold]

Description:

• split hard-coded path string into default /usr prefix and relative install path
• use XSLT_PREFIX environment variable to override prefix

Rationale:

• allows development workflows using a virtual environment for installed dependencies

Review Hints:

• see tox example here

[openshift-ci]

Hi @sarnold. Thanks for your PR.

I'm waiting for a ComplianceAsCode member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[github-actions]

Start a new ephemeral environment with changes proposed in this pull request:

Fedora Environment

Oracle Linux 8 Environment

[codeclimate]

Code Climate has analyzed commit 96ad35b and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 58.5% (0.0% change).

View more on Code Climate.