scripts: style: Handle EPIPE errors when displaying help.
* guix/scripts/style.scm (%options): Handle EPIPE errors when displaying help.
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			@ -547,7 +547,7 @@ bailing out~%"))
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        (option '(#\h "help") #f #f
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                (lambda args
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                  (show-help)
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                  (leave-on-EPIPE (show-help))
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                  (exit 0)))
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        (option '(#\l "list-stylings") #f #f
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                (lambda args
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