[libjoedog/f19] changed %%_hardening_ldflags to %%{?_hardening_ldflags} Will now expand to {NULL} if not defined fix

[Björn Esser]

Summary of changes:

  a29f59f... changed %%_hardening_ldflags to %%{?_hardening_ldflags} Wil (*)

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