udhcpc -x hostname:<name> not working on nommu

[Denys Vlasenko]

On Mon, May 8, 2017 at 3:41 AM, Ian Burns <Ian.Burns at rinstrum.com> wrote:
> As an aside, on nommu, invoking udhcpc with "-b" fails with "udhcpc: invalid option -- b", whereas invoking with "--background" behaves as expected.

Code for -b on NOMMU is not compiled in.
IOW: --background can't "behave as expected".

I take it you meant that --background is accepted but ignored:
udhcpc backgrounds right away, not
"Background if lease is not obtained" as --help says?