verison info:
8.0 snapshot tested on cloud

edavis-mbp:kibana_elastic edavis$ git show -s 43495d80ba02199216bf7f5679ea67874cb690f7
commit 43495d80ba02199216bf7f5679ea67874cb690f7
Date: Wed Oct 7 18:53:19 2020 -0600

Agent:
https://snapshots.elastic.co/8.0.0-af3cda3c/downloads/beats/elastic-agent/elastic-agent-8.0.0-SNAPSHOT-windows-x86_64.zip

Describe the bug:
I'm not sure if this ever worked since we put in the new 'install' command, but it works from the unzipped Windows path, but I expect this usage is the definitive way to have a user know what version is installed so I'm logging it.

Steps to reproduce:

• install 8.0 latest
• install the agent with 'install' command
• change Agent to the new policy
  on the host open an Admin powershell terminal and browse to C:\Program Files\Elastic\Agent and type:
  elastic-agent.exe version

Expected behavior:
it should give you the Agent version of whatever is installed