Hi. I'm a starter theme called _s, or underscores, if you like. I'm a theme meant for hacking so don't use me as a Parent Theme. Instead try turning me into the next, most awesome, WordPress theme out there. That's what I'm here for.
Add backward compatibility for wp_body_open function. as it was introduced in WordPress 5.2. Lots of themes use the _s theme as a base theme. So it's needed to add a check for backward compatibility.
Changes proposed in this Pull Request:
Add backward compatibility for wp_body_open function. as it was introduced in WordPress 5.2. Lots of themes use the _s theme as a base theme. So it's needed to add a check for backward compatibility.
Related issue(s): #1447