puppetlabs/sqlserver: jruby exception for "templates/create/user/permission.sql.erb"

Basic Info

MSSQL manifest to create/manage database `MQSQL 2017` using module "puppetlabs/sqlserver - Ver 2.5.0" is not working with `Win Agent node`.

Module Version:  2.5.0. 
Puppet Version: PE 2019.1.1
OS Name/Version:
Win Server 2016 ( agent)
RHEL 7.3 ( master)

Describe your issue in as much detail as possible...

Customer is getting an error message when running mssql manifest to create/manage MQSQL 2017 using module "puppetlabs/sqlserver"

```
Could not retrieve catalog from remote server: Error 500 on SERVER: Server Error: Evaluation Error: Error while evaluating a Resource Statement, Evaluation Error: Error while evaluating a Function Call, Failed to parse template sqlserver/create/user/permission.sql.erb:

Filepath: org/jruby/RubyString.java

Line: 1829

Detail: can't modify frozen String

(file: /etc/puppetlabs/code/environments/production/modules/sqlserver/manifests/user/permissions.pp, line: 51, column: 19) (file: /etc/puppetlabs/code/environments/production/site/mssql/manifests/init.pp, line: 223)
```

Steps to reproduce:

• Manifest file for Master node:

  ```
  node d9zptv23hgj08r7.delivery.puppetlabs.net
  Unknown macro: { sqlserver_instance Unknown macro}
  sqlserver::config
  Unknown macro: { 'MSSQLSERVER'}
  sqlserver::database
  Unknown macro: { 'testdb'}
  sqlserver::login
  Unknown macro: { 'vagrant'}
  sqlserver::user
  Unknown macro: { 'testdb-vagrant'}
  sqlserver::user::permissions
  Unknown macro: { 'SELECT-testdb-vagrant'}
  }
  ```

  Error message:
  ```
  2019-09-15T21:12:15.707-07:00 ERROR [qtp1159967607-83] [puppetserver] Puppet Evaluation Error: Error while evaluating a Resource Statement, Evaluation Error: Error while evaluating a Function Call, Failed to parse template sqlserver/create/user/permission.sql.erb:
  Filepath: org/jruby/RubyString.java
  Line: 1829
  Detail: can't modify frozen String
  (file: /etc/puppetlabs/code/environments/production/modules/sqlserver/manifests/user/permissions.pp, line: 51, column: 19) (file: /etc/puppetlabs/code/environments/production/manifests/site.pp, line: 49) on node d9zptv23hgj08r7.delivery.puppetlabs.net
  ```