Fix man page difference on Linux.

Library/Homebrew/cask/cmd/abstract_command.rb

 # frozen_string_literal: true
 
-require "cask/config"
 require "search"
 
 module Cask
@@ -35,8 +34,7 @@ module Cask
 
       OPTIONS = [
         [:switch, "--[no-]binaries", {
-          description: "Disable/enable linking of helper executables to `#{Config.global.binarydir}`. " \
-                       "Default: enabled",
+          description: "Disable/enable linking of helper executables. Default: enabled",
           env:         :cask_opts_binaries,
         }],
         [:switch, "--require-sha",  {

docs/Manpage.md

@@ -382,7 +382,7 @@ installed formulae or, every 30 days, for all formulae.
 * `--language`:
   Set language of the Cask to install. The first matching language is used, otherwise the default language on the Cask. The default value is the `language of your system`
 * `--[no-]binaries`:
-  Disable/enable linking of helper executables to `/usr/local/bin`. Default: enabled
+  Disable/enable linking of helper executables. Default: enabled
 * `--require-sha`:
   Require all casks to have a checksum.
 * `--[no-]quarantine`:

manpages/brew.1

@@ -593,7 +593,7 @@ Set language of the Cask to install\. The first matching language is used, other
 .
 .TP
 \fB\-\-[no\-]binaries\fR
-Disable/enable linking of helper executables to \fB/usr/local/bin\fR\. Default: enabled
+Disable/enable linking of helper executables\. Default: enabled
 .
 .TP
 \fB\-\-require\-sha\fR