tomcat : addto generates invalid setenv.sh

Basic Info
Module Version: 2.2.0
Puppet Version: 4.10.10
OS Name/Version: RHEL6-7

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

Desired Behavior: generate a valid shell fragment for setenv.sh when using addto, for example :

export JAVA_OPTS_XMS='-Xms64M' ; export JAVA_OPTS="$JAVA_OPTS $JAVA_OPTS_XMS"

Actual Behavior: includes an extra linebreak which causes this error

syntax error near unexpected token `;'

because the generated file contains :

export JAVA_OPTS_XMS='-Xms64M'

 ; export JAVA_OPTS="$JAVA_OPTS $JAVA_OPTS_XMS"

using the following snippet:

tomcat::setenv::entry { "xms":

  param => 'JAVA_OPTS_XMS',

  value => "-Xms64M",

  addto => 'JAVA_OPTS',

  quote_char => "'",

}