userNameAttribute case style is different others

[komuro-hiraku]

Summary

https://docs.spring.io/spring-security/site/docs/current/reference/html5/#oauth2login-boot-property-mappings

userNameAttribute is not correct case style.

However, I confirmed that it works correctly with the property before modification.

Actual Behavior

Expected Behavior

userNameAttribute -> user-name-attribute

Configuration

Version

5.2.2.RELEASE

Sample