RFR: JDK-8309958: Incorrect @since tag format in Container.java

[Dmitry Markov]

On Wed, 14 Jun 2023 18:25:31 GMT, Harshitha Onkar <honkar at openjdk.org> wrote:

> Minor Javadoc change for since tag in Container.java

Marked as reviewed by dmarkov (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/14474#pullrequestreview-1480151433