audiofile security update

[1:0.3.6-9]

• Apply security patches. CVE-2018-17095, CVE-2018-13440
• Resolves: rhbz#1600369, rhbz#1601014, rhbz#1637128
  [1:0.3.6-8]
• Escape macros in %changelog
  [1:0.3.6-7]
• Merge upstream pull requests #42,#43,#44 from Agostino Sarubbo to fix
  security issues. CVE-2017-6827, CVE-2017-6828,
  CVE-2017-6829, CVE-2017-6830, CVE-2017-6831,
  CVE-2017-6832, CVE-2017-6833, CVE-2017-6834, CVE-2017-6835,
  CVE-2017-6836, CVE-2017-6837, CVE-2017-6838, CVE-2017-6839
  [1:0.3.6-6]
• patch to compile with GCC 6
  [1:0.3.6-5]
• Merge fix from upstream pull request #25 for CVE-2015-7747.
  Test conversion from e.g. 16-bit LE stereo to 8-bit LE mono
  no longer causes corruption.