ContainerProperties setSyncCommits javadoc

[igouss]

	 * Set whether or not to call consumer.commitSync() or commitAsync() when the
	 * container is responsible for commits. Default true. See
	 * https://github.com/spring-projects/spring-kafka/issues/62 At the time of
	 * writing, async commits are not entirely reliable.
	 * @param syncCommits true to use commitSync().
	 */
	public void setSyncCommits(boolean syncCommits) {
		this.syncCommits = syncCommits;
	}

Is this warning still valid?

[garyrussell]

I believe it is fixed; we can remove that comment, but I'll try a run of the test suite with it set to false, just to be safe.

https://issues.apache.org/jira/browse/KAFKA-3412