Merge commit 'dc40e64adb1712b1209c018914a44f809bc32664'

* commit 'dc40e64adb1712b1209c018914a44f809bc32664':
  hvcc: zero initialize the nal buffers past the last written byte

This commit is a noop, see 9482ec1b20

Merged-by: Mark Thompson <sw@jkqxz.net>