[ClusterLabs/libqb] 4bdb80: config: Fix check for fdatasync

[Christine Caulfield]

Branch: refs/heads/master
  Home:   https://github.com/ClusterLabs/libqb
  Commit: 4bdb80bdeba36b151821bcbb77beea249a3a0cad
      https://github.com/ClusterLabs/libqb/commit/4bdb80bdeba36b151821bcbb77beea24...
  Author: Christine Caulfield 
  Date:   2017-08-24 (Thu, 24 Aug 2017)

Changed paths:
    M configure.ac

Log Message:
  -----------
  config: Fix check for fdatasync

Signed-off-by: Christine Caulfield