[ceph/epel7] (5 commits) ...remove trailing whitespace

[Ken Dreyer]

Summary of changes:

  975579a... gperftools not currently available on aarch64 (*)
  a69f025... build without tcmalloc on aarch64 (no gperftools) (*)
  c523b37... Update to latest stable upstream release (*)
  f07f612... Merge branch 'master' into epel7 (*)
  b4b867b... remove trailing whitespace (*)

(*) This commit already existed in another branch; no separate mail sent