make link_to_revision respect custom options

lib/open_project/object_linking.rb

@@ -75,11 +75,11 @@ module OpenProject
     # Options:
     # * :text - Link text (default to the formatted revision)
     def link_to_revision(revision, project, options = {})
-      text = options.delete(:text) || format_revision(revision)
-      rev = revision.respond_to?(:identifier) ? revision.identifier : revision
-
-      link_to(h(text), { controller: '/repositories', action: 'revision', project_id: project, rev: rev },
-              title: l(:label_revision_id, format_revision(revision)))
+      text         = options.delete(:text) || format_revision(revision)
+      rev          = revision.respond_to?(:identifier) ? revision.identifier : revision
+      url_options  = { controller: '/repositories', action: 'revision', project_id: project, rev: rev }
+      html_options = { title: l(:label_revision_id, format_revision(revision)) }.merge options
+      link_to(h(text), url_options, html_options)
     end
 
     # Generates a link to a message