Separated out stderr and stdout messages from wipe.
Added progress messages to wipe.
Read phase of wipe now handles partial last block.

git-svn-id: svn://graphite/diminuto/trunk@488 5dfbf39a-1452-0410-8a97-9e58fedde8e3
Trying to get rid of format warnings.

git-svn-id: svn://graphite/diminuto/trunk@489 5dfbf39a-1452-0410-8a97-9e58fedde8e3