On-Chain Polls: Fix verify-poll parameter

[weebl2000]

It's --tx-file, not --signed-tx-file

Checklist

• I have read the How to Contribute.
• I have run yarn build after adding my changes without getting any errors.

Updating documentation or Bugfix

[rphair]

True enough, thanks 🤓

$ cardano-cli-8.0.0 governance verify-poll
Usage: cardano-cli-8.0.0 governance verify-poll --poll-file FILE
            --tx-file FILE
            [--out-file FILE]

[weebl2000]

I spot a Nijntje!

[rphair]

correct, it's from the cover of Miffy the Artist (English title); I edited out the paintbrush 🐰

[rphair]

@katomm @os11k @rdlrt @fill-the-fill getting some traffic from https://forum.cardano.org/t/entering-voltaire-on-chain-poll-for-spos/117330/38 so will have to push this out soon.

[rphair]

I figured out how this error came about... the option was --signed-tx-file in the backport. I guess since 8.0.0 uses the more canonically named option it will completely supersede the backport in time, so there's no benefit complicating the instructions by explaining how the backport works differently. @rdlrt @os11k @fill-the-fill @katomm maybe let me know if you think otherwise & I'll update the instructions for both cases.

$ cardano-cli-8.0.0 governance verify-poll --poll-file poll.json --tx-file vote.signed
Found valid poll answer with 1 signatories
[
    "c94e6fe1123bf111b77b57994bcd836af8ba2b3aa72cfcefbec2d3d4"
]

$ cardano-cli-1.35.7+cip-0094 governance verify-poll --poll-file poll.json --tx-file vote.signed
Invalid option `--tx-file'

Usage: cardano-cli-1.35.7+cip-0094 governance verify-poll --poll-file FILE
            --signed-tx-file FILE

  Verify an answer to a given SPO poll