Details.

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@13608 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Revert sprintf type. Add a new function to support %a conversions in sprintf functionality.

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@13609 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Add a test for meta format %{ %}. Some corrections on (commented) expected results.

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@13610 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02