should_skip_target(): add docs explaining its purpose
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@ -641,7 +641,10 @@ sub stow_node {
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=head2 should_skip_target($target)
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Determine whether target is a stow directory which should
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not be stowed to or unstowed from.
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not be stowed to or unstowed from. This mechanism protects
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stow directories from being altered by stow, and is a necessary
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safety check because the stow directory could live beneath the
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target directory.
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=over 4
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