Fixed SC2244: Prefer explicit -n to check non-empty string.
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@ -145,7 +145,7 @@ if [ -z "${PUBLIC_IPV6:-}" ]; then
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"${DEFAULT_PUBLIC_IPV6:-}" \
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PUBLIC_IPV6
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if [ ! "$PUBLIC_IPV6_EXITCODE" ]; then
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if [ ! -n "$PUBLIC_IPV6_EXITCODE" ]; then
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# user hit ESC/cancel
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exit
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fi
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