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@@ -2402,12 +2402,10 @@ from the server and replaced with the new one. This is different from [updating
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after delivery, where both messages are kept in the cache.
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This is particularly useful for implementing a **watchdog that triggers when your script stops sending heartbeat messages**.
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-This mechanism is also called a [dead man's switch](https://en.wikipedia.org/wiki/Dead_man%27s_switch). The idea is to have
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-a mechanism that triggers an alert if it's not periodically reset.
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+This mechanism is also called a [dead man's switch](https://en.wikipedia.org/wiki/Dead_man%27s_switch).
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-For example, you could schedule a message to be
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-delivered in 5 minutes, but continuously update it every minute to push the delivery time further into the future.
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-If your script or system stops running, the message will eventually be delivered as an alert.
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+For example, you could schedule a message to be delivered in 5 minutes, but continuously update it every minute to push
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+the delivery time further into the future. If your script or system stops running, the message will eventually be delivered as an alert.
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Here's an example of a dead man's switch that sends an alert if the script stops running for more than 5 minutes:
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binwiederhier