[MANTTASKS-189] display an explicit error message when scope="system" without systemPath attribute instead of NPE

git-svn-id: https://svn.apache.org/repos/asf/maven/ant-tasks/trunk@965211 13f79535-47bb-0310-9956-ffa450edef68
2 files changed
tree: 51183cd49e6f33c7abdc2a3af842c0cc35ae008e
  1. src/
  2. build-tests.xml
  3. pom.xml
  4. README.txt