Skip Confirmation Email option only visible to Super Admins

[williamsba1]

When adding a new user in WordPress Multisite, the "Skip Confirmation Email" option is only available to Super Admins.

If you enable the "Add New Users" featured for site admins, they'll have the ability to create new users under Users > Add New. However the "Skip Confirmation Email" option is hidden because they are not a Super Admin.

Super Admins and Admins should have the ability to enable this option when adding new users.

[bananastalktome]

Not to be pedantic, but shouldn't this check add_users rather than manage_options? Also, just to throw this out there, could we allow the super admin to decide whether regular admins can see the "Skip Confirmation Email" option through a setting on the "Network Settings" screen?

[williamsba1]

Good point. Updated patch added

[williamsba1]

Updated patch to use the promote_users capability, per Nacin's suggestion

[SergeyBiryukov]

Duplicate of #22277.