app-shells/zsh: check for /usr/sbin in ROOTPATH before using it

[floppym]

Bug: https://bugs.gentoo.org/656400

[gentoo-bot]

Pull Request assignment

Areas affected: ebuilds
Packages affected: app-shells/zsh

app-shells/zsh: @radhermit, @Polynomial-C

Bugs linked: 656400

In order to force reassignment and/or bug reference scan, please append [please reassign] to the pull request title.

[gentoo-repo-qa-bot]

Pull request CI report

Report generated at: 2018-05-25 17:37 UTC
Newest commit scanned: e1e29ce
Status: ✅ good

No issues found

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