Add localization, move code to helper, add test

ee/app/helpers/ee/gitlab_routing_helper.rb

@@ -38,6 +38,10 @@ module EE
       project_security_vulnerability_path(entity.project, entity, *args)
     end
 
+    def vulnerability_url(vulnerability)
+      ::Gitlab::UrlBuilder.build(vulnerability)
+    end
+
     def project_vulnerability_path(project, vulnerability, *args)
       project_security_vulnerability_path(project, vulnerability, *args)
     end

ee/app/views/vulnerabilities/issue_description.md.erb

 <% if vulnerability.is_a? Vulnerability %>
-Issue created from vulnerability <%= link_to vulnerability.id, Gitlab::UrlBuilder.build(vulnerability) %>
+<%= _("Issue created from vulnerability") %> <%= link_to vulnerability.id, vulnerability_url(vulnerability) %>
 
 <% end %>
 ### <%= _("Description") %>:

ee/spec/helpers/ee/gitlab_routing_helper_spec.rb

@@ -142,4 +142,14 @@ RSpec.describe EE::GitlabRoutingHelper do
       end
     end
   end
+
+  describe '#vulnerability_url' do
+    let_it_be(:vulnerability) { create(:vulnerability) }
+
+    subject { vulnerability_url(vulnerability) }
+
+    it 'returns the full url of the vulnerability' do
+      expect(subject).to eq "http://localhost/#{vulnerability.project.namespace.path}/#{vulnerability.project.name}/-/security/vulnerabilities/#{vulnerability.id}"
+    end
+  end
 end

locale/gitlab.pot

@@ -8,8 +8,6 @@ msgid ""
 msgstr ""
 "Project-Id-Version: gitlab 1.0.0\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2020-09-22 19:32+0200\n"
-"PO-Revision-Date: 2020-09-22 19:32+0200\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
 "Language: \n"
@@ -14045,6 +14043,9 @@ msgstr ""
 msgid "Issue cannot be found."
 msgstr ""
 
+msgid "Issue created from vulnerability"
+msgstr ""
+
 msgid "Issue events"
 msgstr ""