Migrated to clap4. Command line flags must appear before arguments:
- Good: /dust -X debug target
- Bad: . /dust target -X debug
Bars on right by default (change with new Flag -B)
Add flag -S (for Custom Stack size) - incase dust crashes with memory allocation error.
Add flat -I (--ignore-all-in-file) - Ignore all regexs in this file.
Clearer errors on file not found.