* spack checksum: improve interactive filtering
* fix signature of executable
* Fix restart when using editor
* Don't show [x version(s) are new] when no known versions (e.g. in spack create <url>)
* Test ^D in test_checksum_interactive_quit_from_ask_each
* formatting
* colorize / skip header on invalid command
* show original total, not modified total
* use colify for command list
* Warn about possible URL changes
* show possible URL change as comment
* make mypy happy
* drop numbers
* [o]pen editor -> [e]dit
a5cb7a9816