led: extras: fix cargo clippy complaining about String construction#49
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…ld String Use Iterator::fold() and write! instead. Does this make a difference in this case performance wise? No Does this make cargo clippy happy? Yes Signed-off-by: Leonard Göhrs <l.goehrs@pengutronix.de>
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cargo clippylearned a new trick to optimize the construction of Strings and will not give us green CI builds before we adapt to it.So let's do it.