Describe the lock address in a lock announcement message.

(note that some error messages are not announcing the lock,
which is not that nice).
At least the lock order violation message do not announce locks.
That should be improved/fixed



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14188 a5019735-40e9-0310-863c-91ae7b9d1cf9
Remove an unneeded function call.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14189 a5019735-40e9-0310-863c-91ae7b9d1cf9