The `_network_option()` parameter order will be changing to accept `$network_id` first. The `_site_option()` functions will remain in use throughout core as our way of retrieving a network option for the current network.
See #28290.
git-svn-id: https://develop.svn.wordpress.org/trunk@34912 602fd350-edb4-49c9-b593-d223f7449a82
Replaces all uses of `*_site_option()` with the corresponding "network" function.
This excludes one usage in `wp-admin/admin-footer.php` that needs more investigation.
Props spacedmonkey.
See #28290.
git-svn-id: https://develop.svn.wordpress.org/trunk@34778 602fd350-edb4-49c9-b593-d223f7449a82