Rationale: POSIX <http://www.opengroup.org/susv3/basedefs/xbd_chap04.html>
says that
"A pathname that contains at least one non-slash character and that
- ends withone or more trailing slashes shall be resolved as if a
+ ends with one or more trailing slashes shall be resolved as if a
single dot character ( '.' ) were appended to the pathname."
and
"The special filename dot shall refer to the directory specified by