Merged revision(s) 1622743 from lucene/dev/trunk:
Better way to pass properties down to Maven: Append them to command line as real Maven properties, not as sysprops! Maven-Ant-Tasks should have support for that. By that it is now possible to override tests.multiplier, which was not possible before (pom.xml defines it so sysprop is ignored).

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1622744 13f79535-47bb-0310-9956-ffa450edef68