libquvi-scripts: libquvi-scripts/0.9/common/quvi/youtube.lua requires 'socket.url'

[dbevans (David B. Evans)]

When I run totem I get the following critical warning:

** (totem-pl-parser-videosite:39219): CRITICAL **: [_chk_script_ident] .../local/share/libquvi-scripts/0.9/common/quvi/youtube.lua:109: module 'socket.url' not found:
	no field package.preload['socket.url']
	no file '/opt/local/share/lua/5.2/socket/url.lua'
	no file '/opt/local/share/lua/5.2/socket/url/init.lua'
	no file '/opt/local/lib/lua/5.2/socket/url.lua'
	no file '/opt/local/lib/lua/5.2/socket/url/init.lua'
	no file './socket/url.lua'
	no file '/opt/local/share/libquvi-scripts/0.9/common/socket/url.lua'
	no file '/opt/local/lib/lua/5.2/socket/url.so'
	no file '/opt/local/lib/lua/5.2/loadall.so'
	no file './socket/url.so'
	no file '/opt/local/lib/lua/5.2/socket.so'
	no file '/opt/local/lib/lua/5.2/loadall.so'
	no file './socket.so'

Looking at /opt/local/share/libquvi-scripts/0.9/common/quvi/youtube.lua:109

function M.normalize(url)
  if not url then
    return url
  end

  local U = require 'socket.url'