Fix spelling mistakes(#2930)

[xiaozzzi]

Describe what this PR does / why we need it

A typo exists in the EagleEye.class method name setEagelEyeSelfAppender()

public final class EagleEye {
    ...
    static void setEagelEyeSelfAppender(EagleEyeAppender appender) {
        selfAppender = appender;
    }
}

Does this pull request fix one issue?

Fixes #2930

Describe how you did it

fix it to eagle

[CLAassistant]

All committers have signed the CLA.

[sczyh30]

LGTM

[sczyh30]

Thanks for contributing!