bug: no multi-line support for -m message flag

[devnetkc]

Which Version of WordPress SSH Git CI are you running

• [e.g. v1.0.1 or PR #] v1.1.0

Describe the bug
A clear and concise description of what the bug is.

To Reproduce
Steps to reproduce the behavior:

1. Use the -m flag and type in a multi-line message
2. execute script and see error

Expected behavior
When a message is typed in using -m it should support multi-line entry

Screenshots
coming soon

Web Server (please complete the following information):

• Server Host Company [e.g. SiteGround, HostGator] SiteGround
• SSH: [e.g watch ssh returns /usr/bin/ssh]

Repository Server (please complete the following information):

• Host Company [e.g. Azure DevOps, BitBucket] Azure DevOps

Additional context
commit message flag doesn't seem to be playing very nice with in-line command entries from Azure DevOps Pipeline

Relates to issue #16
relates to PR #29