Expand ${source} in the expected results automatic note.

git-svn-id: http://svn.boost.org/svn/boost/trunk@83589 b8fc166d-592f-0410-95f2-cb63ce0dd405
Try to avoid browser caching problems.

git-svn-id: http://svn.boost.org/svn/boost/trunk@83590 b8fc166d-592f-0410-95f2-cb63ce0dd405