Escaped newlines in error message

[ethomson]

I provided an invalid version and architecture to the setup-python action:

    - name: 'Select Python version'
      uses: actions/setup-python@master
      with:
        version: $PYTHON_VERSION
        architecture: $PYTHON_ARCH

(I was attempting to make variable expansion happen.) The error message was surprising, with what appear to be escaped \r and \n:

##[error]Version $PYTHON_VERSION with arch $PYTHON_ARCH not found%0D%0AAvailable versions:%0D%0A%0D%0A

I would expect either actual newlines or some other type of whitespace, not %0D%0A.

[konradpabjan]

Not seeing this error. I used environment variables to get the same type of error and this is happening:

We use pythons .join(os.EOL) so there shouldn't be any weird escape characters, see here:

setup-python/src/find-python.ts

Line 113 in 6e5196c

].join(os.EOL)

Maybe there were some weird things going on with how env variables were being passed in when this was first created but I haven't been able to repo this