t8*: adjust the references to the default branch name "main"

[git] / t / chainlint / block.test

(
# LINT: missing "&&" in block not currently detected (for consistency with
# LINT: --chain-lint at top level and to provide escape hatch if needed)
        foo &&
        {
                echo a
                echo b
        } &&
        bar &&
# LINT: missing "&&" at closing "}"
        {
                echo c
        }
        baz
)