Order of files feels backwards about dap

[mgale]

Originally I modeled the input after Patch and https://github.com/google/diff-match-patch
https://man7.org/linux/man-pages/man1/patch.1.html
https://github.com/google/diff-match-patch/wiki/API

The text describes the process as ".... differences is computed which describe the transformation of text1 into text2". I thought of it as:

dap <original> <desired_state>

However I am open to changing it, thoughts?

[DavidGamba]

That order also matches the order of git diff --no-index it seems. Mind if I submit a PR to have the error help changed to:

ERROR: Missing required arguments!
NAME:
    dap - Transforms <original> into <desired_changes>. Said another way, brings changes into <original> from <desired_changes>.

        Example: ./dap original desired_changes

SYNOPSIS:
    dap [--debug] [--dry-run] [--follow-sym-links] [--help|-h|-?]
        [--ignore-paths <string>]... [--include-hidden] [--report-only|-q]
        [--version|-V] <original> <desired_changes>

OPTIONS:
    --debug                    (default: false)

    --dry-run                  Dry-run skips updating the underlying file contents (default: false)

    --follow-sym-links         Follow symlinks (default: false)

    --help|-h|-?               (default: false)

    --ignore-paths <string>    Excludes pathnames from directory search, providing a value overrides the defaults of .git and .terraform (default: [])

    --include-hidden           Include hidden files and directories (default: false)

    --report-only|-q           Report only files that differ (default: false)

    --version|-V               (default: false)

[DavidGamba]

Fixed in #11