root-highlighter: use EUID instead of id -u command
No need to fork every time.
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@ -40,5 +40,5 @@ _zsh_highlight_root_highlighter_predicate()
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# root highlighting function.
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_zsh_highlight_root_highlighter()
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{
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if [[ $(command id -u) -eq 0 ]] { region_highlight+=("0 $#BUFFER $ZSH_HIGHLIGHT_STYLES[root]") }
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if (( EUID == 0 )) { region_highlight+=("0 $#BUFFER $ZSH_HIGHLIGHT_STYLES[root]") }
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}
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