Add missing ChangeLog entry (bug not known).
r=eeb (original fix)
- fix ppc64/x86_64 spec to use %{_libdir} instead of /usr/lib (5389)
- remove ancient LOV_MAGIC_V0 EA support (5047)
- add "disk I/Os in flight" and "I/O req time" stats in obdfilter
+ - align r/w RPCs to PTLRPC_MAX_BRW_SIZE boundaries for performance
- allow readahead allocations to fail when low on memory (5383)
- mmap locking landed again, after considerable improvement (2828)