Fix failing test.

app/views/projects/network/show.html.haml

@@ -15,5 +15,5 @@
               = check_box_tag :filter_ref, 1, @options[:filter_ref]
               %span Begin with the selected commit
 
-    .network-graph{ data: { url: "#{escape_javascript(@url)}", commit_url: "#{escape_javascript(@commit_url)}", ref: "#{escape_javascript(@ref)}", commit_id: "#{escape_javascript(@commit.id)}" } }
+    .network-graph{ data: { url: '#{escape_javascript(@url)}', commit_url: '#{escape_javascript(@commit_url)}', ref: '#{escape_javascript(@ref)}', commit_id: '#{escape_javascript(@commit.id)}' } }
       = spinner nil, true