Eugene Yokota 9937230f0c Fixes semicolon showing up in parser errors ...

Fixes https://github.com/sbt/sbt/issues/5039
Fixes https://github.com/sbt/sbt/issues/4989

This is take 2 on the semicolon fix by emptying out the completion examples in the multi parser.

```
> set scalaV
```

would complete to

```
> set scalaVersion
```

and more importantly

```
coursierUseSbtCredentials := true
```

errors to

```
sbt:hello> coursierUseSbtCredentials := true
[error] Expected ID character
[error] Not a valid command: coursierUseSbtCredentials
[error] Expected project ID
[error] Expected configuration
[error] Expected ':'
[error] Expected key
[error] Not a valid key: coursierUseSbtCredentials (similar: csrExtraCredentials, credentials)
[error] coursierUseSbtCredentials := true
[error]                          ^
```

2020-08-13 01:41:19 -04:00

..

src

Fixes semicolon showing up in parser errors

2020-08-13 01:41:19 -04:00