Add option -N to sort keys with same freq numerically

Change-Id: I70c4b8c6c5b7f9f6e705716a8d46fd3a23e5de6b
2 files changed
tree: 30c60a0cece9bef38508d3e791256cf4b46e2d1e
  1. src/
  2. .gitignore
  3. CHANGELOG.md
  4. pom.xml