Bump yargs from 11.0.0 to 12.0.1

[dependabot-preview]

Bumps yargs from 11.0.0 to 12.0.1.

Changelog

Sourced from yargs's changelog.

12.0.1 (2018-06-29)

12.0.0 (2018-06-26)

Bug Fixes

• .argv and .parse() now invoke identical code path (#1126) (f13ebf4)
• remove the trailing white spaces from the help output (#1090) (3f0746c)
• completion: Avoid default command and recommendations during completion (#1123) (036e7c5)

Chores

• test Node.js 6, 8 and 10 (#1160) (84f9d2b)
• upgrade to version of yargs-parser that does not populate value for unset boolean (#1104) (d4705f4)

Features

• add support for global middleware, useful for shared tasks like metrics (#1119) (9d71ac7)
• allow setting scriptName $0 (#1143) (a2f2eae)
• remove setPlaceholderKeys (#1105) (6ee2c82)

BREAKING CHANGES

• Options absent from argv (not set via CLI argument) are now absent from the parsed result object rather than being set with undefined
• drop Node 4 from testing matrix, such that we'll gradually start drifting away from supporting Node 4.
• yargs-parser does not populate 'false' when boolean flag is not passed
• tests that assert against help output will need to be updated

11.1.0 (2018-03-04)

Bug Fixes

• choose correct config directory when require.main does not exist (#1056) (a04678c)

Features

• allow hidden options to be displayed with --show-hidden (#1061) (ea862ae)
• extend *.rc files in addition to json (#1080) (11691a6)

... (truncated)

Commits

• 18b2fcb chore(release): 12.0.1
• cfa7c65 chore: explicit update of yargs-parser
• 6ab99fe chore: bump engines to Node.js 6.x (#1169)
• 52f87c0 chore: bump decamelize & find-up (#1168)
• def00e8 docs: add info about installing next version, see #1134 (#1165)
• 58292b6 docs: fix breaking change note in CHANGELOG.md (#1166)
• fc31713 docs: fix typo in CHANGELOG
• 53e3a94 chore(release): 12.0.0
• 6ee2c82 feat: remove setPlaceholderKeys (#1105)
• 26080ba chore: cache node_modules (#1159)
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Note: This repo was added to Dependabot recently, so you'll receive a maximum of 5 PRs for your first few update runs. Once an update run creates fewer than 5 PRs we'll remove that limit.

You can always request more updates by clicking Bump now in your Dependabot dashboard.

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot ignore this [patch|minor|major] version will close this PR and stop Dependabot creating any more for this minor/major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
• @dependabot use these labels will set the current labels as the default for future PRs for this repo and language
• @dependabot use these reviewers will set the current reviewers as the default for future PRs for this repo and language
• @dependabot use these assignees will set the current assignees as the default for future PRs for this repo and language
• @dependabot badge me will comment on this PR with code to add a "Dependabot enabled" badge to your readme

Additionally, you can set the following in your Dependabot dashboard:

• Update frequency (including time of day and day of week)
• Automerge options (never/patch/minor, and dev/runtime dependencies)
• Pull request limits (per update run and/or open at any time)
• Out-of-range updates (receive only lockfile updates, if desired)
• Security updates (receive only security updates, if desired)

Finally, you can contact us by mentioning @dependabot.

[dependabot-preview]

Superseded by #27.