refactored a bit, made it more explicit

lib/cocoapods/command/help.rb

 module Pod
   class Command
     class Help < Command
-      self.summary = 'Show help for the given command'
+      self.summary = 'Show help for the given command.'
       self.arguments = '[COMMAND]'
 
-      def self.parse(argv)
-        command_needs_help = [argv.shift_argument, '--help']
-        argv.empty? ? super : Pod::Command.parse(command_needs_help)
+      def initialize(argv)
+        @help_command = Pod::Command.parse(argv) unless argv.empty?
+        super
       end
 
       def run
-        help!
+        help_command.help!
+      end
+
+      private
+
+      def help_command
+        @help_command || self
       end
     end
   end
-end
\ No newline at end of file
+end

spec/functional/command/help_spec.rb

@@ -6,17 +6,17 @@ module Pod
 
     it "invokes the right command with --help flag" do
       command = command('help', 'push')
-      command.should.be.instance_of Pod::Command::Push
-      lambda { command.validate! }.should.raise CLAide::Help
+      command.send(:help_command).should.be.instance_of Pod::Command::Push
+      lambda { command.run }.should.raise CLAide::Help
     end
 
     it "raises help! if no other command is passed" do
-      lambda { command('help').validate! }.should.raise CLAide::Help
+      lambda { command('help').run }.should.raise CLAide::Help
     end
 
     it "shows the right usage" do
       Pod::Command::Help.arguments.should.equal '[COMMAND]'
     end
-    
+
   end
-end
\ No newline at end of file
+end