Support flags

[autero1]

Description

Fixes #91

Properly handle flags when processing --module-param. Previously a flag that was passed like this: --module-param flag ended up like this: --flag flag. With this change it is properly passed as just --flag.

TODOs

Read the Gruntwork contribution guidelines.

• Update the docs.
• Run the relevant tests successfully, including pre-commit checks.
• Ensure any 3rd party code adheres with our license policy or delete this line if it's not applicable.
• Include release notes. If this PR is backward incompatible, include a migration guide.

Release Notes (draft)

Added / Removed / Updated [X].

Migration Guide

[robmorgan]

LGTM.

p.s I found one else statement on line 164, that could be pushed back one backspace but its unrelated to this PR!

offender:

elif [[ -n "$sha512_checksum" ]]; then