CAP_ADMIN does not exist (the closest existing capability name would be
CAP_SYS_ADMIN), and according to man:open(2) and man:capabilities(7),
the capability required to specify O_NOATIME is actually CAP_FOWNER.
<para><command>systemd-tmpfiles</command> tries to avoid changing
the access and modification times on the directories it accesses,
- which requires <constant>CAP_ADMIN</constant> privileges. When
+ which requires <constant>CAP_FOWNER</constant> privileges. When
running as non-root, directories which are checked for files to
clean up will have their access time bumped, which might prevent
their cleanup.