[glibc/f17] (2 commits) ... - When retrying after main arena failure, always retry in a different arena. (#789238)

[Jeffrey Law]

Summary of changes:

  ca8adba... Final version of the 804792 patch.  No functional changes. (*)
  c309580...   - When retrying after main arena failure, always retry in (*)

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