Fix style. (#4111)

* Fix style.

* update uninstall signal - adobe-photoshop-cs6

Casks/adobe-air-beta.rb

@@ -9,13 +9,13 @@ cask 'adobe-air-beta' do
 
   installer script: {
                       executable: 'Adobe AIR Installer.app/Contents/MacOS/Adobe AIR Installer',
-                      args:       %w[-silent],
+                      args:       ['-silent'],
                       sudo:       true,
                     }
 
   uninstall script: {
                       executable: 'Adobe AIR Installer.app/Contents/MacOS/Adobe AIR Installer',
-                      args:       %w[-uninstall],
+                      args:       ['-uninstall'],
                       sudo:       true,
                     },
             rmdir:  [

Casks/adobe-photoshop-cs6.rb

@@ -29,7 +29,7 @@ cask 'adobe-photoshop-cs6' do
     uninstall_file.close
   end
 
-  uninstall signal: [%w[KILL SafariNotificationAgent]],
+  uninstall signal: ['KILL', 'SafariNotificationAgent'],
             script: {
                       executable: "#{name.join}/Install.app/Contents/MacOS/Install",
                       args:       ['--mode=silent', "--deploymentFile=#{staged_path}/#{name.join}/Deployment/en_US_Uninstall.xml"],

Casks/gpgtools-beta.rb

@@ -14,7 +14,7 @@ cask 'gpgtools-beta' do
   pkg 'Install.pkg'
 
   uninstall_postflight do
-    %w[gpg gpg2 gpg-agent].map { |exec_name| "/usr/local/bin/#{exec_name}" }.each do |exec|
+    ['gpg', 'gpg2', 'gpg-agent'].map { |exec_name| "/usr/local/bin/#{exec_name}" }.each do |exec|
       File.rm(exec) if File.exist?(exec) && File.readlink(exec).include?('MacGPG2')
     end
   end

Casks/lilypond-dev.rb

@@ -9,12 +9,12 @@ cask 'lilypond-dev' do
 
   app 'LilyPond.app'
 
-  binaries = %w[
-               abc2ly
-               convert-ly
-               lilypond
-               lilypond-book
-               musicxml2ly
+  binaries = [
+               'abc2ly',
+               'convert-ly',
+               'lilypond',
+               'lilypond-book',
+               'musicxml2ly',
              ]
 
   binaries.each do |shimscript|

Casks/totalfinder-beta.rb

@@ -13,6 +13,6 @@ cask 'totalfinder-beta' do
   uninstall pkgutil: 'com.binaryage.pkg.totalfinder.app',
             script:  {
                        executable: 'TotalFinder Uninstaller.app/Contents/MacOS/TotalFinder Uninstaller',
-                       args:       %w[--headless],
+                       args:       ['--headless'],
                      }
 end

Casks/virtualbox-beta.rb

@@ -18,7 +18,7 @@ cask 'virtualbox-beta' do
 
   uninstall script:  {
                        executable: 'VirtualBox_Uninstall.tool',
-                       args:       %w[--unattended],
+                       args:       ['--unattended'],
                        sudo:       true,
                      },
             pkgutil: 'org.virtualbox.pkg.*'