Typo in file name in example for -Xlint:processing

A DESCRIPTION OF THE PROBLEM :
https://docs.oracle.com/en/java/javase/16/docs/specs/man/javac.html

Proposed fix: https://github.com/openjdk/jdk/pull/3937

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Check the section "Examples of Using -Xlint keys" https://docs.oracle.com/en/java/javase/16/docs/specs/man/javac.html#examples-of-using--xlint-keys for "processing" key.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Many possibilities.
- Referenced file name matches contained class.
- Contained class name matches the file name.
- The class to not be not public.
ACTUAL -
Referenced file name does not match the name of public class.