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authorWynn Wolf Arbor2020-05-11 15:44:10 +0200
committerWynn Wolf Arbor2020-05-13 14:31:08 +0200
commit4579c8411ef7dae1ac871555a19f1bfbfae5b54c (patch)
treeb33bf3597edd1f72b127f1714f7d9d3285154190 /LICENSE
parentec83ba371971dd2e00f46a17c7e22715756e18a1 (diff)
downloadbosun-4579c8411ef7dae1ac871555a19f1bfbfae5b54c.tar.gz
Only shift positional parameters if there are any
bash 5.0 now enables its 'shift_verbose' option in POSIX mode by default, printing an error message if there's not enough positional arguments for the `shift` builtin. We rely on the previous (silent) behaviour in two places. For main command parsing, introduce an explicit check before invoking `shift` to make sure it is only called if there are enough positional arguments. The call to `shift` in the list() method is actually superfluous, as no more than one positional argument is ever referenced; we drop it fully there.
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