We have the path "/opt/thinlinc" hard coded all over the place. This is of course not good in case we some day want to change prefix (one might dream of a standard "/usr" prefix).
New code is developed using ctccommon.get_tl_prefix(), but all the old stuff needs to be changed.
We should probably also have a look at any hard coded absolute path (e.g. /var/opt, /var/lib).