Use `open <url>` on macOS instead of webbrowser module.
Review Request #8959 — Created May 23, 2017 and submitted
There's currently a bug in the interaction between AppleScript on the latest
macOS and python's
webbrowsermodule which is causing URL opens to fail. This
change moves us over to using macOS's
opencommand instead, which is likely
the way that Python is going to go.
Posted this change and opened it successfully.