Renamed exp-drd directory into drd. Moved drd from the experimental tool class to the class of regular tools.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@8361 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/README_PACKAGERS b/README_PACKAGERS
index 519d147..752ac02 100644
--- a/README_PACKAGERS
+++ b/README_PACKAGERS
@@ -78,7 +78,7 @@
 
 
 -- Don't strip symbols from lib/valgrind/$platform/{cachegrind,
-   callgrind,exp-drd,exp-omega,helgrind,lackey,massif,memcheck,none}
+   callgrind,drd,exp-omega,helgrind,lackey,massif,memcheck,none}
    in the installation tree.  Doing so will likely cause problems.
    Removing the line number info is probably OK, although that has not
    been tested by the Valgrind developers.