This mirrors the --preserve-fds option of Podman.
Converting an unsigned 'uint', which is what Podman uses for its
--preserve-fds option, to a string is surprisingly annoying.
strconv.Itoa [1] takes a signed 'int', which would require a cast, and
there's no unsigned counterpart. There's strconv.FormatUint [2] which
takes an unsigned 'uint64', which is better, but would still require a
cast.
So, fmt.Sprint [3] it is, if the cast is to be avoided. It's more
expensive than the other two functions, but there's no need to worry
unless it's proven to be a performance bottle neck.
Some changes by Debarshi Ray.
[1] https://pkg.go.dev/strconv#Itoa
[2] https://pkg.go.dev/strconv#FormatUint
[3] https://pkg.go.dev/fmt#Sprinthttps://github.com/containers/toolbox/issues/1066
Signed-off-by: Allison Karlitskaya <allison.karlitskaya@redhat.com>
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