Merge "logpersist: switch to pgrep from ps" am: 68285c0033
am: b749a0c02f

* commit 'b749a0c02fa925c77eae7eff5198a5e34be0cfb6':
  logpersist: switch to pgrep from ps

Change-Id: Ia4e06f203824539c3d6f6e7d7f88f1e955a626bf