<term><varname>Credential=</varname></term>
<listitem>
<para>Checks whether the specified credential was passed to the
- <filename>systemd-networkd.service</filename> service. See <ulink
+ <filename>systemd-udevd.service</filename> service. See <ulink
url="https://systemd.io/CREDENTIALS">System and Service Credentials</ulink> for details. When
prefixed with an exclamation mark (<literal>!</literal>), the result is negated. If an empty
string is assigned, the previously assigned value is cleared.