Changelog
- 8fd3279 append forbidden characters to status message
- 2253e0a fix windows test
- e2ec9ec prevent matching empty variables
- e0fc088 show intermediate results when chaining
- 438d0c6 test variable regex matches
- 20fc61e test variable regex matches
- 527e5bd upgrade urfave/cli
- 455fc15 use keepachangelog.com format