Use bash parameter expansion.

[Montana]

I've updated this so it cleverly uses bash parameter expansion to conditionally include the current word and a space only if it starts with a hyphen.

[CLAassistant]

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1 out of 2 committers have signed the CLA.

✅ dopey
❌ Montana
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[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
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[dopey]

Hey @Montana 👋. Thanks for submitting the PR! I'm really sorry it's taken so long for me to get around to testing :[

That said, I have tested on my local and I'm not sure it's working as intended. When I type step ca provisioner (no space at the end) and then hit <tab><tab> I get garbled output. I'm just using step ca provisioner as an example here, because this happens with any command.

If I try the same thing with the existing bash_completion script I get the intended output (listing the currently available commands - in this case just provisioner, since I haven't completed that word).

Let me know if I'm doing something wrong. As my username reflects, I can be pretty thick skulled at times.