Users: Use correct variable when displaying the Additional Capabilities list in user profile.

Addresses a regression in [45926].

Props wpgurudev, aravindajith, anantajitjg, davidbaumwald.
Fixes #48725.
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git-svn-id: https://core.svn.wordpress.org/trunk@46582 1a063a9b-81f0-0310-95a4-ce76da25c4cd