Fix new rubocop warnings

app/controllers/amf_controller.rb

@@ -143,6 +143,7 @@ class AmfController < ApplicationController
 
       if cstags
         return -1, "One of the tags is invalid. Linux users may need to upgrade to Flash Player 10.1." unless tags_ok(cstags)
+
         cstags = strip_non_xml_chars cstags
       end
 
@@ -497,6 +498,7 @@ class AmfController < ApplicationController
       rel = Relation.where(:id => relid).first
 
       return [-4, "relation", relid] if rel.nil? || !rel.visible
+
       [0, "", relid, rel.tags, rel.members, rel.version]
     end
   end
@@ -533,6 +535,7 @@ class AmfController < ApplicationController
       return -1, "You must accept the contributor terms before you can edit." if REQUIRE_TERMS_AGREED && user.terms_agreed.nil?
 
       return -1, "One of the tags is invalid. Linux users may need to upgrade to Flash Player 10.1." unless tags_ok(tags)
+
       tags = strip_non_xml_chars tags
 
       relid = relid.to_i
@@ -622,6 +625,7 @@ class AmfController < ApplicationController
       return -2, "Server error - way is only #{pointlist.length} points long." if pointlist.length < 2
 
       return -1, "One of the tags is invalid. Linux users may need to upgrade to Flash Player 10.1." unless tags_ok(attributes)
+
       attributes = strip_non_xml_chars attributes
 
       originalway = originalway.to_i
@@ -651,6 +655,7 @@ class AmfController < ApplicationController
 
           # fixup node tags in a way as well
           return -1, "One of the tags is invalid. Linux users may need to upgrade to Flash Player 10.1." unless tags_ok(node.tags)
+
           node.tags = strip_non_xml_chars node.tags
 
           node.tags.delete("created_by")
@@ -728,6 +733,7 @@ class AmfController < ApplicationController
       return -1, "You must accept the contributor terms before you can edit." if REQUIRE_TERMS_AGREED && user.terms_agreed.nil?
 
       return -1, "One of the tags is invalid. Linux users may need to upgrade to Flash Player 10.1." unless tags_ok(tags)
+
       tags = strip_non_xml_chars tags
 
       id = id.to_i

app/controllers/changeset_controller.rb

@@ -481,6 +481,7 @@ class ChangesetController < ApplicationController
       u = if name.nil?
             # user input checking, we don't have any UIDs < 1
             raise OSM::APIBadUserInput, "invalid user ID" if user.to_i < 1
+
             u = User.find(user.to_i)
           else
             u = User.find_by(:display_name => name)

app/controllers/node_controller.rb

@@ -54,6 +54,7 @@ class NodeController < ApplicationController
     new_node = Node.from_xml(request.raw_post)
 
     raise OSM::APIBadUserInput, "The id in the url (#{node.id}) is not the same as provided in the xml (#{new_node.id})" unless new_node && new_node.id == node.id
+
     node.delete_with_history!(new_node, current_user)
     render :plain => node.version.to_s
   end
@@ -65,6 +66,7 @@ class NodeController < ApplicationController
     ids = params["nodes"].split(",").collect(&:to_i)
 
     raise OSM::APIBadUserInput, "No nodes were given to search for" if ids.empty?
+
     doc = OSM::API.new.get_xml_doc
 
     Node.find(ids).each do |node|

app/controllers/user_controller.rb

@@ -826,6 +826,7 @@ class UserController < ApplicationController
   def gravatar_enable(user)
     # code from example https://en.gravatar.com/site/implement/images/ruby/
     return false if user.image.present?
+
     hash = Digest::MD5.hexdigest(user.email.downcase)
     url = "https://www.gravatar.com/avatar/#{hash}?d=404" # without d=404 we will always get an image back
     response = OSM.http_client.get(URI.parse(url))