Fix styling issues.

app/controllers/projects/wikis_controller.rb

@@ -12,12 +12,14 @@ class Projects::WikisController < Projects::ApplicationController
 
   def show
     @page = @project_wiki.find_page(params[:id], params[:version_id])
+    gollum_wiki = @project_wiki.wiki
+    file = gollum_wiki.file(params[:id], gollum_wiki.ref, true)
 
     if @page
       render 'show'
-    elsif file = @project_wiki.wiki.file(params[:id], @project_wiki.wiki.ref, true)
+    elsif file
        if file.on_disk?
-         send_file file.on_disk_path, :disposition => 'inline'
+         send_file file.on_disk_path, disposition: 'inline'
        else
          send_data(
            file.raw_data,