pub fn extract_command_path(matches: &ArgMatches) -> Vec<String>Expand description
Extracts the command path from ArgMatches by following the subcommand chain.
For example, myapp db migrate produces ["db", "migrate"].
No name is privileged. A word the caller answers for itself — a framework
rendering its own help, say — never reaches these matches; a command
merely called help is a command like any other and is returned as one.