tree a47a089e12258715a8d0c2728f971351fd5768b0
parent bb72b808f46486997d62b916bbe0126c78be4afb
author Tom Cherry <tomcherry@google.com> 1543958109 -0800
committer Tom Cherry <tomcherry@google.com> 1543958752 -0800

fs_mgr: use more unique_fd

Modernize a bit of code in preparation for the rest of the
modernization.  Use more unique_fd and fix a few fd leaks in the
process.

Bug: 62292478
Test: boot
Change-Id: I2a6f1abaa1b9a4e979baea36764b91157c2ed218