Mark new dwfl functions with version ELFUTILS_0.158.

It took two versions to get the new thread state and unwind dwfl functions
in. Make sure they carry the latest elfutils symbol version in which they
were actually added.

Signed-off-by: Mark Wielaard <mjw@redhat.com>
diff --git a/libdw/ChangeLog b/libdw/ChangeLog
index dc0c4c9..33885ac 100644
--- a/libdw/ChangeLog
+++ b/libdw/ChangeLog
@@ -1,3 +1,11 @@
+2013-11-26  Mark Wielaard  <mjw@redhat.com>
+
+	* libdw.map (ELFUTILS_0.156): Move dwfl_attach_state, dwfl_pid,
+	dwfl_thread_dwfl, dwfl_thread_tid, dwfl_frame_thread,
+	dwfl_thread_state_registers, dwfl_thread_state_register_pc,
+	dwfl_getthreads, dwfl_thread_getframes and dwfl_frame_pc to ...
+	(ELFUTILS_0.158): ... here.
+
 2013-11-09  Mark Wielaard  <mjw@redhat.com>
 
 	* dwarf_getaranges.c (dwarf_getaranges): Read segment_size and