Will break YAML parsing!
Original Node error:
```
Jonathans-MBP:node jon$ node tools/doc/generate.js --format=json doc/api/dgram.md
Input file = doc/api/dgram.md
{ Error
at generateError (/Users/jon/code/nodejs/node/tools/eslint/node_modules/js-yaml/lib/js-yaml/loader.js:165:10)
at throwError (/Users/jon/code/nodejs/node/tools/eslint/node_modules/js-yaml/lib/js-yaml/loader.js:171:9)
at readBlockSequence (/Users/jon/code/nodejs/node/tools/eslint/node_modules/js-yaml/lib/js-yaml/loader.js:935:7)
at composeNode (/Users/jon/code/nodejs/node/tools/eslint/node_modules/js-yaml/lib/js-yaml/loader.js:1331:12)
at readBlockMapping (/Users/jon/code/nodejs/node/tools/eslint/node_modules/js-yaml/lib/js-yaml/loader.js:1062:11)
at composeNode (/Users/jon/code/nodejs/node/tools/eslint/node_modules/js-yaml/lib/js-yaml/loader.js:1332:12)
at readDocument (/Users/jon/code/nodejs/node/tools/eslint/node_modules/js-yaml/lib/js-yaml/loader.js:1492:3)
at loadDocuments (/Users/jon/code/nodejs/node/tools/eslint/node_modules/js-yaml/lib/js-yaml/loader.js:1548:5)
at load (/Users/jon/code/nodejs/node/tools/eslint/node_modules/js-yaml/lib/js-yaml/loader.js:1569:19)
at Object.safeLoad (/Users/jon/code/nodejs/node/tools/eslint/node_modules/js-yaml/lib/js-yaml/loader.js:1591:10)
name: 'YAMLException',
reason: 'bad indentation of a sequence entry',
mark:
Mark {
name: null,
buffer: '\nadded: v0.11.13\nchanges:\n - version: REPLACEME\n pr-url: https://github.com/nodejs/node/pull/14560\n description: The `lookup` option is supported.\n - version: REPLACEME\n pr-url: https://github.com/nodejs/node/pull/13623\n description: `recvBufferSize` and `sendBufferSize` options are supported now.\n\u0000',
position: 248,
line: 8,
column: 17 },
message: 'bad indentation of a sequence entry at line 9, column 18:\n description: `recvBufferSize` and `sendBuffer ... \n ^' }
```
Then I extracted out the problematic YAML, and tried running through Ruby as a
separate `.yml` file:
```
Psych::SyntaxError: (<unknown>): found character that cannot start any token while scanning for the next token at line 8 column 18
from /Users/jon/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych.rb:377:in `parse'
from /Users/jon/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych.rb:377:in `parse_stream'
from /Users/jon/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych.rb:325:in `parse'
from /Users/jon/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych.rb:252:in `load'
from (irb):7
from /Users/jon/.rbenv/versions/2.4.0/bin/irb:11:in `<main>'
```