`/bin/sh: syntax error: unexpected "}"` when building for v3.18 and `sudo`

[ShaneMcC]

When attempting to build for v3.18 using sudo rather than doas, the script fails with:

/bin/sh: syntax error: unexpected "}"

This is because additional_os_configuration() generates an empty section:

write_log "Doing additional OS configuration"
{
}

Moving the write_log line inside the {} section resolves the problem.

[dermotbradley]

Yeah I'd missed this as I hadn't tested sudo for a while (Alpine prefers doas to sudo these days).

Fixed in the most recent PR merged.