[automerger skipped] fs_mgr: overlayfs: suppress mkfs output
am: 51eb0bb447 -s ours
am skip reason: change_id I7ed8842e42b74b6a487ce6324b28baf78f1f63bf with SHA1 4560714d10 is in history

Change-Id: Ib3a3fc55d1a3844c154e3fd400594af0ef0789c0