findmissing: initdb_upstream: Use logging facility

Since logging is now set up, let's use it.

BUG=None
TEST=Run on GCE

Change-Id: I207ab0e779a12ef615ab40714c3a245db8f7cc35
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/2196218
Reviewed-by: Curtis Malainey <cujomalainey@chromium.org>
Commit-Queue: Guenter Roeck <groeck@chromium.org>
Tested-by: Guenter Roeck <groeck@chromium.org>
1 file changed