Those three missing files have now been added to Rietveld.

Just for reference, in case anyone else encounters this: the reason those 
files were missing from the initial upload was that after I svn merge'd 
from py3k-short-float-repr to py3k, those files were being treated (by 
svn) as *copies* from py3k-short-float-repr, rather than new files, so svn 
diff didn't show any output for them.  Doing:

svn revert Python/dtoa.c
svn add Python/dtoa.c

(and similarly for the other two files) fixed this.