Manual reformatting in preparation for uncrustify.

Reindent example code blocks in Doxygen comments to align as uncrustify
would align them.  New enough Doxygen should be able to strip the leading
whitespace from the blocks.  Disable uncrustify indentation in one
static data declaration where uncrustify can't keep the original manual
indentation.

Related to #845.

Change-Id: I585852db6fc08557ca55cba41a1349533e1b9c4d
Merge "Manual reformatting in preparation for uncrustify."