Comment changes.

git-svn-id: svn://graphite/diminuto/trunk@463 5dfbf39a-1452-0410-8a97-9e58fedde8e3
Added new scan function to path.

git-svn-id: svn://graphite/diminuto/trunk@464 5dfbf39a-1452-0410-8a97-9e58fedde8e3