usr_sbin/grml-config-root: Fix a couple of shellcheck warnings
authorDarshaka Pathirana <dpat@syn-net.org>
Fri, 5 Mar 2021 15:07:46 +0000 (16:07 +0100)
committerDarshaka Pathirana <dpat@syn-net.org>
Fri, 3 Dec 2021 11:54:54 +0000 (12:54 +0100)
- SC2006: Use $(..) instead of legacy `..`.
- SC2230: which is non-standard. Use builtin 'command -v' instead.
- SC2086: Double quote to prevent globbing and word splitting.


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