fix: remark excerpt add halfChop option

[youngboy]

Default prune won't work for non-english text. Add halfChop (default to true) option, set it to false so that non-english blogs will make it fallback to lodash truncate.

I think this resolve #6916

[KyleAMathews]

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[pieh]

Could we detect this automatically? that prune is failing and automatically switch to truncate?

If not then this looks good, not sure about halfChop name - is this reference to something that I don't understand? :) Please document this option in readme, and possibly add to troubleshooting section for "excerpts for non-latin languages" or something like that?

[youngboy]

@pieh So sorry about confusing name halfChop, I 'borrow' this from underscore.string's readme

prune(string, length, pruneString) => string

Elegant version of truncate. Makes sure the pruned string does not exceed the original length. Avoid half-chopped words when truncating.

How about just rename it to truncate ?

For detect failing case automatically, I think there is no straightforward way.

[pieh]

How about just rename it to truncate ?
Let's go with that. Most important parts is to add docs for this

[KyleAMathews]

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[pieh]

Just some wording nitpicking

[pieh]

How about something like this:

By default, excerpt uses underscore.string/prune which doesn't handle non-latin characters (esamattis/underscore.string#418).

If that is the case, you can set truncate option on excerpt field, like:

and your query after that?

[youngboy]

Thanks 👍, updated.

[KyleAMathews]

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[pieh]

Thanks

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	Fails
🚫	Danger failed to run /app/danger-0.8y4mpmx3t26.ts.

Error VMError

Cannot find module '../utils/testable-schedule'
VMError: Cannot find module '../utils/testable-schedule'
    at _require (/app/node_modules/vm2/lib/sandbox.js:246:25)
    at Object.<anonymous> (/app/danger-0.8y4mpmx3t26.ts:4:29)
    at NodeVM.run (/app/node_modules/vm2/lib/main.js:427:27)
    at Object.<anonymous> (/app/node_modules/danger/distribution/runner/runners/vm2.js:100:37)
    at step (/app/node_modules/danger/distribution/runner/runners/vm2.js:43:23)
    at Object.next (/app/node_modules/danger/distribution/runner/runners/vm2.js:24:53)
    at /app/node_modules/danger/distribution/runner/runners/vm2.js:18:71
    at new Promise (<anonymous>)
    at __awaiter (/app/node_modules/danger/distribution/runner/runners/vm2.js:14:12)
    at Object.exports.runDangerfileEnvironment (/app/node_modules/danger/distribution/runner/runners/vm2.js:83:121)

Dangerfile

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