Get back '--' the cmd option ending indicator by reverting "Fix #264"

[laggardkernel]

Revert #270.

It's not a perfect fix, breaks the usage of -- to indicate the end of cmd options.

❯ command trash-put -- 1.txt
trash-put: cannot trash non existent '--'

Besides, seems nargs argparse.REMAINDER/... is deprecated cause it's not documented anymore.

Related

• https://github.com/andreafrancia/trash-cli/pull/270
• https://github.com/andreafrancia/trash-cli/issues/264
• https://docs.python.org/3.10/library/argparse.html#nargs

[andreafrancia]

Thank you.