- # As "mkdir -p" follows symlinks and we work in /tmp possibly; so
- # create the $tmpdir first (and fail if unsuccessful) to make sure
- # that nobody tries to guess the $tmpdir name.
+ # Because "mkdir -p" follows existing symlinks and we likely work
+ # directly in world-writeable /tmp, make sure that the '$tmpdir'
+ # directory is successfully created first before we actually test
+ # 'mkdir -p' feature.