RFR: 1698: Warning not to force push/rebase can be made clearer

[Joe Darcy]

On Fri, 9 Dec 2022 16:17:04 GMT, Zhao Song <zsong at openjdk.org> wrote:

> Rephrased the second sentence of the warning not to force push/rebase.

Looks fine.

Regarding the word "always", I assume there are no situations where the squash doesn't occur?

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Marked as reviewed by darcy (Reviewer).

PR: https://git.openjdk.org/skara/pull/1441