This morning Stewart announced the release of Percona Playback 0.4 (with packages).
Unfortunately, the bug I was referring in my previous post was not fixed in that release. Therefore I created again a package based on 0.4 including the patch that allows to parse slow query log with statements written on multiple lines.
Just to inform that the bug has been resolved by Stewart (using another path than the one provided in the proposed patch) and that this fix will be released in 0.5 ! 😀