# A multi-line string is recommmended.
#
# eg. `"Usage: tool [OPTION]... [FILE]...\nDo some things."`
- var tooldescription: String writable = "Usage: [OPTION]... [ARG]..."
+ var tooldescription: String = "Usage: [OPTION]... [ARG]..." is writable
# Does `process_options` should accept an empty sequence of arguments.
# ie. nothing except options.
# Is `false` by default.
#
# If required, if should be set by the client before calling `process_options`
- var accept_no_arguments writable = false
+ var accept_no_arguments = false is writable
# print the full usage of the tool.
# Is called by `process_option` on `--help`.