Hash syntax improved

app/models/issue.rb

@@ -25,13 +25,13 @@ class Issue < ActiveRecord::Base
 
   acts_as_taggable_on :labels
 
-  state_machine :state, :initial => :opened do
+  state_machine :state, initial: :opened do
     event :close do
       transition [:reopened, :opened] => :closed
     end
 
     event :reopen do
-      transition :closed => :reopened
+      transition closed: :reopened
     end
 
     state :opened

app/models/merge_request.rb

@@ -29,7 +29,7 @@ class MergeRequest < ActiveRecord::Base
 
   attr_accessor :should_remove_source_branch
 
-  state_machine :state, :initial => :opened do
+  state_machine :state, initial: :opened do
     event :close do
       transition [:reopened, :opened] => :closed
     end
@@ -39,7 +39,7 @@ class MergeRequest < ActiveRecord::Base
     end
 
     event :reopen do
-      transition :closed => :reopened
+      transition closed: :reopened
     end
 
     state :opened

app/models/milestone.rb

@@ -26,13 +26,13 @@ class Milestone < ActiveRecord::Base
   validates :title, presence: true
   validates :project, presence: true
 
-  state_machine :state, :initial => :active do
+  state_machine :state, initial: :active do
     event :close do
-      transition :active => :closed
+      transition active: :closed
     end
 
     event :activate do
-      transition :closed => :active
+      transition closed: :active
     end
 
     state :closed