Lee Hinman 3ae2e9bbc6 Make forbidden APIs be quieter about classpath warnings (#21443)
We currently have a lot of log messages in our CI output like

```
[thirdPartyAudit] WARNING: The referenced class 'org.noggit.JSONParser' cannot be loaded. Please fix the classpath!
[thirdPartyAudit] WARNING: The referenced class 'org.noggit.JSONParser' cannot be loaded. Please fix the classpath!
[thirdPartyAudit] WARNING: The referenced class 'org.noggit.JSONParser' cannot be loaded. Please fix the classpath!
[thirdPartyAudit] WARNING: The referenced class 'org.noggit.JSONParser' cannot be loaded. Please fix the classpath!
[thirdPartyAudit] WARNING: The referenced class 'org.noggit.JSONParser' cannot be loaded. Please fix the classpath!
[thirdPartyAudit] WARNING: The referenced class 'org.noggit.JSONParser' cannot be loaded. Please fix the classpath!
[thirdPartyAudit] WARNING: The referenced class 'org.noggit.JSONParser' cannot be loaded. Please fix the classpath!
[thirdPartyAudit] WARNING: The referenced class 'org.noggit.JSONParser' cannot be loaded. Please fix the classpath!
[thirdPartyAudit] WARNING: The referenced class 'org.noggit.JSONParser' cannot be loaded. Please fix the classpath!
... repeated 1827281 times ...
```

This changes these messages to be logged at the DEBUG level, so they
will not show up by default.
2016-11-09 14:50:06 -07:00
..