Properly set module names in presence of -Q. (Fix for bug #3958)

This is done by adding a fourth type of loadpath, the ones that are
neither implicit nor root, for the subdirectories of a -Q root.

Note: this means that scanning for available directories is no longer done
on the fly for -Q, but once and for all, as with -R.

0 files changed, 0 insertions, 0 deletions