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Fix all shellcheck warnings
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@@ -3,9 +3,9 @@
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# Distributed under the terms of the Modified BSD License.
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# Set reasonable default VM settings
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: ${VIRTUALBOX_CPUS:=4}
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: "${VIRTUALBOX_CPUS:=4}"
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export VIRTUALBOX_CPUS
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: ${VIRTUALBOX_MEMORY_SIZE:=4096}
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: "${VIRTUALBOX_MEMORY_SIZE:=4096}"
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export VIRTUALBOX_MEMORY_SIZE
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docker-machine create --driver virtualbox "$@"
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