Administration: Typos in `wp_admin_notice()` arguments

[dlh]

A few of the calls to the new wp_admin_notice() function appear to have typos in their argument arrays:

• Two instances of additonal_classes instead of additional.
• One instance of is-dismissible instead of dismissible.

Two of these three seem pretty unlikely to be encountered by most users in their daily work, but one of the instances of additonal occurs in update_nag(), making the notification for updating core appear somewhat diminished.

[mukesh27]

Good catch, introduced in [56599] / #57791.

Patch working fine:

Patch is working as expected.

Before:

After:

[SergeyBiryukov]

In 57084:

Administration: Fix typos in wp_admin_notice() arguments in a few instances.

Follow-up to [56570], [56599].

Props dlh, mukesh27, sumitbagthariya16.
Fixes #59830.

Thanks for the PR! Merged in r57084.

[SergeyBiryukov]

Reopening for backporting to the 6.4 branch.

[azaozz]

+1 to backport.

[hellofromTonya]

I'm also +1 for backporting to the 6.4 branch.

[jorbin]

In 57087:

Administration: Fix typos in wp_admin_notice() arguments in a few instances.

Follow-up to [56570], [56599].

Reviewed by azaozz, joedolson, jorbin.

Props dlh, mukesh27, sumitbagthariya16.
Fixes #59830.

[rajinsharwar]

#59857 was marked as a duplicate.

[pbiron]

#59895 was marked as a duplicate.