Avi Vahl d79212a662 fix: migrate from optimist to yargs (#1666) ...

closes #1658

- adapted code from master to latest yargs (`.option` calls).

```
4.x:
found 188 vulnerabilities (169 low, 4 moderate, 14 high, 1 critical) in 5815 scanned packages

4.x with this PR:
found 32 vulnerabilities (17 low, 1 moderate, 13 high, 1 critical) in 5829 scanned packages
```

2020-03-31 16:54:11 +01:00

..

handlebars

fix: migrate from optimist to yargs (#1666)

2020-03-31 16:54:11 +01:00