Shellfu v0.10.21 - FloatingPointError
Overview of changes:
* Added extra shorthand arguments for common usage errors
Things like missing positional arguments or unknown arguments need
to be dealt with so often it warrants these shorthands.
* Fortified command, file and pipe delimiters
Often it's helpful to see more clearly where output begins and where
it ends. Note that this is a small step from pretty.sh's total
minimalism, on the other hand these file and command printers are
not exactly minimalistic already; they are not intended for normal
use but rather for debugging.