fix syntax issue causing failure on older versions of nodeJS

[brettcomardelle]

Description

Running the connector in node v7 and v8 failed due to the trailing commas. Later versions of nodeJS would ignore the syntax issue.

Related issues

• connect to <link_to_referenced_issue>

Checklist

• New tests added or existing tests modified to cover all changes
• Code conforms with the style
  guide

[slnode]

Can one of the admins verify this patch? To accept patch and trigger a build add comment ".ok\W+to\W+test."

[dhmlau]

@brettcomardelle, thanks for your PR. Your changes LGTM. Could you please fix the commit linter error? Thanks.

**************************************************
**
**  Linting commit logs
**
**  1 problems found:
**    4e8bf1b - fix syntax issue causing failure on older versions : First line should be 50 characters or less (saw 60)
**
**************************************************

[dhmlau]

Here is the instruction to amend git message: https://help.github.com/en/github/committing-changes-to-your-project/changing-a-commit-message

See our commit message guideline: https://loopback.io/doc/en/contrib/git-commit-messages.html.

[bajtos]

I have amended the commit message for you, let's wait for CI results before landing.

[bajtos]

@slnode ok to test

[bajtos]

The builds are failing on linting, because our eslint config is enforcing trailing commas.

I did a bit of investigation and have few comments:

Node.js 8.0 and newer support trailing commas in function arguments. Here is an example to try:

function x(
  a,
) {
  console.log('ok', a);
}

x(1);

We don't support Node.js 7.x, it has reached end of life way too long time ago.

In that light, I am closing this pull request as rejected.