Release process: mention another option to handle manual test results.

wiki/src/contribute/release_process.mdwn

@@ -1067,7 +1067,7 @@ Testing
    due time.
 1. Triage test results, reproduce bugs as needed, decide what the next
    step is and make sure it happens: add to known issues? file ticket?
-   release blocker?
+   release blocker? improve the test description (steps, expected outcome)?
 
 Update the website and Git repository
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