* fix a bug in sys_clone that was causing threads to hang at exit
* enable enough syscalls to be able to run ssh and bash


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13826 a5019735-40e9-0310-863c-91ae7b9d1cf9
Update.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13827 a5019735-40e9-0310-863c-91ae7b9d1cf9
Fix incorrect include, spotted by mjw.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13828 a5019735-40e9-0310-863c-91ae7b9d1cf9