[KeychainMinder] Fix update_authdb, cleanup
[KeychainMinder] Fix update_authdb, cleanup

sillywilly42/macops,netconstructor/macops,alexandregz/macops,sillywilly42/macops,netconstructor/macops,bowlofstew/macops,netconstructor/macops,alexandregz/macops,sillywilly42/macops,alexandregz/macops,google/macops,google/macops,google/macops,sillywilly42/macops,google/macops,alexandregz/macops,bowlofstew/macops,ccaviness/macops,bowlofstew/macops,ccaviness/macops,jflinter/macops,bowlofstew/macops,ccaviness/macops,netconstructor/macops,ccaviness/macops,jflinter/macops,jflinter/macops,jflinter/macops