- Add to qvm-run:
- no-gui when command doesn't require a GUI
- filter-escape-chars when pass-io is set and output is not a file,
such as a pipe that could later be used to print information.
- Change remaining echo to printf
- Add end-of-options separator when possible
Make shell a little bit safer with:
- add-default-case
- check-extra-masked-returns
- check-set-e-suppressed
- quote-safe-variables
- check-unassigned-uppercase
Although there are some stylistic decisions for uniformity:
- avoid-nullary-conditions
- deprecated-which
- require-variable-braces
