Incorrectly formatted help message

[ZeroErrors]

As mentioned in: #86 (comment)

While experimenting with this I just noticed that the help generated by the CLI parser is off, but that can be addressed separately:

# cargo size --bin
error: The argument '--bin <NAME>' requires a value but none was supplied

USAGE:
    cargo-size <binary-name> --bin <NAME>

For more information try --help

The <binary-name> shouldn't exist in the output. Its currently used so that parsing is valid but its set to hidden so shouldn't be displayed, could be a bug in clap? more investigation needed.

cargo-binutils/src/lib.rs

Line 172 in 2c39f5c

Arg::with_name("binary-name").hidden(true),