* Now the multi-line link should work (I used the wrong type of apostrophe to close the strings)

add_mesh_3d_function_surface.py

@@ -27,7 +27,8 @@ bl_addon_info = {
     'version': '0.2.3',
     'blender': '2.5.3',
     'location': 'View3D > Add > Mesh > 3D Function Surface',
-    'url': 'http://wiki.blender.org/index.php/Extensions:2.5/Py/Scripts/Add_3d_Function_Surface',
+    'url': 'http://wiki.blender.org/index.php/Extensions:2.5/Py/' \
+        'Scripts/Add_3d_Function_Surface',
     'category': 'Add Mesh'}
 
 # More Links: