8387025: Typo in java man page option --illegal-final-field-mutation=warn "performaed"

[nizarbenalla]

Fixing some typos.
The change in LWButton.java is somewhat out of scope but it didn't seem worth a dedicated JBS issue.
I can split this change into two PRs if needed.

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Progress

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Issue

• JDK-8387025: Typo in java man page option --illegal-final-field-mutation=warn "performaed" (Bug - P4)

Reviewers

• Alan Bateman (@AlanBateman - Reviewer)

Reviewing

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[openjdk]

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[AlanBateman]

/label add core-libs

[AlanBateman]

mea culpa

[openjdk]

@AlanBateman
The core-libs label was successfully added.