Fixed expansion of args with whitespace in JDK 9+.
Fixed expansion of args with whitespace in JDK 9+.

Solves the issue where providing sbt_options and java_args containing whitespaces on Java 9 and higher would fail. Expansion of sbt_options and java_args containing whitespaces would not expand correctly in copyRt(), but instead would create an invalid java command due to missing quotes.
mdedetrich/sbt,sbt/sbt,sbt/sbt,mdedetrich/sbt,sbt/sbt,xuwei-k/xsbt,xuwei-k/xsbt,xuwei-k/xsbt,mdedetrich/sbt,sbt/sbt-launcher-package,sbt/sbt,mdedetrich/sbt,xuwei-k/xsbt,mdedetrich/sbt,mdedetrich/sbt,mdedetrich/sbt,xuwei-k/xsbt,sbt/sbt-launcher-package,sbt/sbt,sbt/sbt,sbt/sbt