Several bug-fixes with the help of the static analyzer

Hi all,

Attached are some small patches to remove dead stores and some unused variables.
One also fixed two calls to strncat with the wrong arguments, which shouldn't result in a crash (the strings weren't that long), but was still wrong.



lldb-log.cpp-unused-var.patch (977 Bytes)

lldb-use-strlcat.patch (1015 Bytes)

MachTask.cpp-dead-store.patch (581 Bytes)

Timer.cpp-dead-var.patch (535 Bytes)

All patches have been checked into top of tree. Thanks!