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Since the Jenkins PR plugin does now set it in the environ.
Merge branch 'develop' of github.com:saltstack/salt into develop
Split the env genertion into parts
Use the `__virtualname__` attribute
Not strictly necessary now(at least on the 1st stage)
Merge pull request #9680 from s0undt3ch/develop

Use the `__virtualname__` attribute
Let's not require these for now.
The env generated from PR's should be a separate step.
Fix attribute name