nuttx/fs/fs.h: Correct the comment for the return value of nx_dup2
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
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@ -795,7 +795,7 @@ int file_dup2(FAR struct file *filep1, FAR struct file *filep2);
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* applications.
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*
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* Returned Value:
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* Zero (OK) is returned on success; a negated errno value is return on
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* fd2 is returned on success; a negated errno value is return on
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* any failure.
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*
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****************************************************************************/
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