Comment 4 for bug 1307180

Note that for the purpose of knowing the .asd file, stripping system names to primary system name is necessary and sufficient (at least with respect to the standard asdf system definition search functions) and so this is something that quicklisp *must* do. There is never a reason to have a non-primary name in the alist that Xach mentions (unless, once again, someone comes up with yet new extensions to asdf and its sysdef earch functions).