Update dependency commander to v6.1.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
commander	dependencies	minor	6.0.0 -> 6.1.0

---

Release Notes

tj/commander.js

v6.1.0

Compare Source

Added

• include URL to relevant section of README for error for potential conflict between Command properties and option values ([#​1306])
• .combineFlagAndOptionalValue(false) to ease upgrade path from older versions of Commander ([#​1326])
• allow disabling the built-in help option using .helpOption(false) ([#​1325])
• allow just some arguments in argumentDescription to .description() ([#​1323])

Changed

• tidy async test and remove lint override ([#​1312])

Fixed

• executable subcommand launching when script path not known ([#​1322])

---

Renovate configuration

📅 Schedule: At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻️ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR has been generated by WhiteSource Renovate. View repository job log here.

[codeclimate]

Code Climate has analyzed commit cac7c9b and detected 0 issues on this pull request.

View more on Code Climate.

[codecov]

Codecov Report

Merging #150 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##            master      #150   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           16        16           
  Lines          305       305           
  Branches        33        49   +16     
=========================================
  Hits           305       305           

Flag	Coverage Δ
#unittests	100.00% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 8598fac...cac7c9b. Read the comment docs.