clarify that IW.expungeDeletes relies on MP to determine merges

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1169816 13f79535-47bb-0310-9956-ffa450edef68
1 file changed
tree: 23b718dd9cb14656298ef2cebc25ea7bb094f3d4
  1. dev-tools/
  2. lucene/
  3. modules/
  4. solr/
  5. .gitignore
  6. .hgignore
  7. build.xml
  8. README.txt