joinpath, except that an absolute path in the second or
later argument will overwrite the previously-merged path. E.g.:
If the second or later argument is an absolute path, it will overwrite the merge of the preceding argument(s). E.g.:
joinpath('one', 'two', '/three/four', 'five')
(under Unix, where a leading "
/" is fully absolute).
Added in version 7.00.1352770000 20121112. Redundant or non-canonical
path separators are not removed nor fixed, nor are "