Update cpp/ql/src/change-notes/2023-08-24-remove-non-constant-assign-sources.md

Co-authored-by: Mathias Vorreiter Pedersen <mathiasvp@github.com>

Author: jketema

cpp/ql/src/change-notes/2023-08-24-remove-non-constant-assign-sources.md

@@ -1,4 +1,4 @@
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 category: minorAnalysis
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-* The `cpp/non-constant-format` query no longer considers an assignment on the right-hand side of another assignment to be a source of non-constant format strings.
+* The `cpp/non-constant-format` query no longer considers an assignment on the right-hand side of another assignment to be a source of non-constant format strings. As a result, the query may now produce fewer results.