Expected behavior
Running terminus remote:drush sitename.dev uli should get me a login URL for admin.
Actual behavior
It errors out with [preflight] Unable to parse at line 2 (near "<?php").
Steps to reproduce the behavior
None that I can document. Its just happening.
This is a D8 site in question(updated to 8.5.2), and I'm able to run the same command successfully on another D852 site.