Latest update inserting an invalid "&" before running scripts

[huntfx]

Environment data

• VS Code version: 1.34.0
• Extension version: 2019.5.18426
• OS and version: Windows 10
• Python version: Python 2.7

Expected behaviour

Runs python correctly

C:\Users\peterh>C:/Python27/python.exe c:/Users/peterh/test.py

Actual behaviour

Uses invalid syntax for cmd (possibly uses powershell syntax)

C:\Users\peterh>& C:/Python27/python.exe c:/Users/peterh/test.py
& was unexpected at this time.

Steps to reproduce:

1. Download ms-python 2019.5.18426
2. Run file/line in cmd terminal

StackOverflow posts with issue

https://stackoverflow.com/questions/56456924/ampersand-syntax-error-running-any-python-script-in-vscode

https://stackoverflow.com/questions/56453888/run-python-file-in-terminal-fails-was-unexpected

[rory-ferguson]

Getting the same issue

[ShubhamBelwal]

Facing the same issue.

[halvomez]

same, downgrade on previously version python extension

[ibakirov]

Duplicate of #5916

[DonJayamanne]

Duplicate of #5916