simple refactoring

app/roles/push_event.rb

@@ -5,11 +5,11 @@ module PushEvent
     false
   end
 
-  def tag? 
+  def tag?
     data[:ref]["refs/tags"]
   end
 
-  def branch? 
+  def branch?
     data[:ref]["refs/heads"]
   end
 
@@ -25,7 +25,7 @@ module PushEvent
     commit_to =~ /^00000/
   end
 
-  def md_ref? 
+  def md_ref?
     !(rm_ref? || new_ref?)
   end
 
@@ -37,7 +37,7 @@ module PushEvent
     data[:after]
   end
 
-  def ref_name 
+  def ref_name
     if tag?
       tag_name
     else