Log Message:
adobe-flash-player: update to 28.0.0.126.

Upstream announcement:

 https://helpx.adobe.com/security/products/flash-player/apsb17-42.html

Adobe Security Bulletin
 Security updates available for Flash Player | APSB17-42

 Summary
  Adobe has released a security update for Adobe Flash Player for
  Windows, Macintosh, Linux and Chrome OS. This update addresses
  a regression that could lead to the unintended reset of the
  global settings preference file.