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Fix echo @- returning error#31

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lego12239 wants to merge 1 commit intoaabc:masterfrom
lego12239:master
Open

Fix echo @- returning error#31
lego12239 wants to merge 1 commit intoaabc:masterfrom
lego12239:master

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@- now suppress only dmesg message. Stderr message is shown. And exit code of echo is not 0. This makes scripting more complicated.

Makes @- suppress stderr message too (and exit with 0 exit code).

@- now suppress only dmesg message. Stderr message is shown.
And exit code of echo is not 0. This makes scripting more complicated.

Makes @- suppress stderr message too (and exit with 0 exit code).
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