Satisfy Rubocop

app/helpers/blob_helper.rb

@@ -38,7 +38,7 @@ module BlobHelper
                                      link_opts)
     if !on_top_of_branch?
-      button_tag "Edit", class: "btn btn-default disabled has_tooltip", title: "You can only edit files when you are on a branch", data: {container: 'body'}
+      button_tag "Edit", class: "btn btn-default disabled has_tooltip", title: "You can only edit files when you are on a branch", data: { container: 'body' }
     elsif can_edit_blob?(blob)
       link_to "Edit", edit_path, class: 'btn btn-small'
     elsif can?(current_user, :fork_project, project)
@@ -62,7 +62,7 @@ module BlobHelper
     return unless blob
     if !on_top_of_branch?
-      button_tag label, class: "btn btn-#{btn_class} disabled has_tooltip", title: "You can only #{action} files when you are on a branch", data: {container: 'body'}
+      button_tag label, class: "btn btn-#{btn_class} disabled has_tooltip", title: "You can only #{action} files when you are on a branch", data: { container: 'body' }
     elsif can_edit_blob?(blob)
       button_tag label, class: "btn btn-#{btn_class}", 'data-target' => "#modal-#{modal_type}-blob", 'data-toggle' => 'modal'
     elsif can?(current_user, :fork_project, project)

app/views/projects/merge_requests/_merge_request.html.haml

@@ -17,7 +17,7 @@
       - if merge_request.open? && merge_request.broken?
         %li
-          = link_to merge_request_path(merge_request), class: "has_tooltip", title: "Cannot be merged automatically", data: {container: 'body'} do
+          = link_to merge_request_path(merge_request), class: "has_tooltip", title: "Cannot be merged automatically", data: { container: 'body' } do
             = icon('exclamation-triangle')
       - if merge_request.assignee

app/views/projects/tree/_tree_header.html.haml

@@ -15,7 +15,7 @@
   - if current_user
     %li
       - if !on_top_of_branch?
-        %span.btn.btn-sm.add-to-tree.disabled.has_tooltip{title: "You can only add files when you are on a branch", data: {container: 'body'}}
+        %span.btn.btn-sm.add-to-tree.disabled.has_tooltip{title: "You can only add files when you are on a branch", data: { container: 'body' }}
           = icon('plus')
       - elsif can_edit_tree?
         %span.dropdown