Re: [PATCH v4 1/2] t1092: allow run_on_* functions to use standard input

> From: Kevin Lyles <klyles@epic.com>
>
> The 'run_on_sparse' and 'run_on_all' functions do not work correctly for
> commands accepting standard input, because they run the same command
> multiple times and the first instance consumes it. This also indirectly
> affects 'test_all_match' and 'test_sparse_match'.
>
> ...
> -# Usage: test_sprase_checkout_set "<c1> ... <cN>" "<s1> ... <sM>"
> +# Usage: test_sparse_checkout_set "<c1> ... <cN>" "<s1> ... <sM>"
>  # Verifies that "git sparse-checkout set <c1> ... <cN>" succeeds and
>  # leaves the sparse index in a state where <s1> ... <sM> are sparse
>  # directories (and <c1> ... <cN> are not).