Update to match Ruby style guide

auto/colour_prompt.rb

@@ -24,7 +24,7 @@ class ColourCommandLine
     return unless RUBY_PLATFORM =~ /(win|w)32$/
     get_std_handle = Win32API.new('kernel32', 'GetStdHandle', ['L'], 'L')
     @set_console_txt_attrb =
-      Win32API.new('kernel32', 'SetConsoleTextAttribute', %w[L N], 'I')
+      Win32API.new('kernel32', 'SetConsoleTextAttribute', %w(L N), 'I')
     @hout = get_std_handle.call(-11)
   end
 

examples/example_3/rakefile.rb

@@ -32,8 +32,8 @@ task :summary do
 end
 
 desc 'Build and test Unity'
-task all: %i[clean unit summary]
-task default: %i[clobber all]
+task all: %i(clean unit summary)
+task default: %i(clobber all)
 task ci: [:default]
 task cruise: [:default]
 

extras/fixture/rakefile.rb

@@ -33,10 +33,10 @@ task unit: [:prepare_for_tests] do
 end
 
 desc 'Build and test Unity Framework'
-task all: %i[clean unit]
-task default: %i[clobber all]
-task ci: %i[no_color default]
-task cruise: %i[no_color default]
+task all: %i(clean unit)
+task default: %i(clobber all)
+task ci: %i(no_color default)
+task cruise: %i(no_color default)
 
 desc 'Load configuration'
 task :config, :config_file do |_t, args|