Ref Man for my contribution

I'll be happy if this could be proofread before I merge ...
This is unclear.  In particular, it's not clear whether "its" refers to the physical path, the logical path, or the command option `-R` (or even `-Q` or `-q`).  It also reads as if, either, the logical path's suffixes all get associated to the same physical path, or the physical path's suffixes all get the same logical path associated to them.  I don't think either of these is correct.