Simplify `build_gitlab_shell_ssh_path_prefix`

config/initializers/1_settings.rb

@@ -33,13 +33,15 @@ class Settings < Settingslogic
     end
 
     def build_gitlab_shell_ssh_path_prefix
+      user_host = "#{gitlab_shell.ssh_user}@#{gitlab_shell.ssh_host}"
+
       if gitlab_shell.ssh_port != 22
-        "ssh://#{gitlab_shell.ssh_user}@#{gitlab_shell.ssh_host}:#{gitlab_shell.ssh_port}/"
+        "ssh://#{user_host}:#{gitlab_shell.ssh_port}/"
       else
         if gitlab_shell.ssh_host.include? ':'
-          "[#{gitlab_shell.ssh_user}@#{gitlab_shell.ssh_host}]:"
+          "[#{user_host}]:"
         else
-          "#{gitlab_shell.ssh_user}@#{gitlab_shell.ssh_host}:"
+          "#{user_host}:"
         end
       end
     end