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Fix a small typo (#826)

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Gelez
2020-06-19 13:00:43 +02:00
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commit 7f9ff717b4
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blog/content/second-edition/posts/07-hardware-interrupts/index.md
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@@ -419,7 +419,7 @@ fn test_println_output() {
We performed the following changes:
- We keep the writer locked for the complete test by using the `lock()` method explicitly. Instead of `println`, we use the [`writeln`] marco that allows printing to an already locked writer.
- We keep the writer locked for the complete test by using the `lock()` method explicitly. Instead of `println`, we use the [`writeln`] macro that allows printing to an already locked writer.
- To avoid another deadlock, we disable interrupts for the tests duration. Otherwise the test might get interrupted while the writer is still locked.
- Since the timer interrupt handler can still run before the test, we print an additional newline `\n` before printing the string `s`. This way, we avoid test failure when the timer handler already printed some `.` characters to the current line.