Latest version of org.specs2:specs2-matcher-extra_2.11
https://javadoc.io/doc/org.specs2/specs2-matcher-extra_2.11
Current version 4.10.3
https://javadoc.io/doc/org.specs2/specs2-matcher-extra_2.11/4.10.3
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/org.specs2/specs2-matcher-extra_2.11/4.10.3/package-list