[chicken/f20] (4 commits) ...fix build by moving BuildRequires from subpackage to base package / also move ldconfig scriptlet cal

[Ricky Elrod]

Summary of changes:

  cae8317... Add -Wformat for bz 1037013 (*)
  e65a417... Drop doc subpackage, add libs subpackage. (#960664) (*)
  daa0f51... Add a provides for old doc subpackage, be more explicit in  (*)
  e0bd49f... fix build by moving BuildRequires from subpackage to base p (*)

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