mod_http_oauth2: Tweak fallback error text Since the oauth error is more like the error condition, a symbolic error code, not the most human-friendly. Many error cases do have human-readable error descriptions that should be fine on their own, or changed to be. As a fallback, capitalize the error name.

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summary: Store token events in the audit log
rockspec:
  dependencies:
  - mod_audit
...

This module stores events relating to auth tokens, e.g. grant creations and revokations, in the audit log provided by `mod_audit`.