scripts: show: Handle EPIPE errors when displaying help.
* guix/scripts/show.scm (%options): Handle EPIPE errors when displaying help.
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		|  | @ -46,7 +46,7 @@ This is an alias for 'guix package --show='.\n")) | |||
|   ;; Specification of the command-line options. | ||||
|   (list (option '(#\h "help") #f #f | ||||
|                 (lambda args | ||||
|                   (show-help) | ||||
|                   (leave-on-EPIPE (show-help)) | ||||
|                   (exit 0))) | ||||
|         (option '(#\V "version") #f #f | ||||
|                 (lambda args | ||||
|  |  | |||
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