Integrated: JDK-8300867: Fix document issues in java.io

[Per Minborg]

On Mon, 23 Jan 2023 14:59:08 GMT, Per Minborg <pminborg at openjdk.org> wrote:

> This PR fixes a couple of typos in the documentation.

This pull request has now been integrated.

Changeset: 4525aa31
Author:    Per Minborg <pminborg at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/4525aa318a1025e19d4ed9924ed25992be0075e9
Stats:     38 lines in 6 files changed: 0 ins; 0 del; 38 mod

8300867: Fix document issues in java.io

Reviewed-by: alanb, lancea, iris

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PR: https://git.openjdk.org/jdk/pull/12142